$50 is a small amount and for sure you will not earn big profit from that,  because you only buy a coim who price is very cheap.  But I suggest you can try to buy ripple and maybe you will good profit because the price of the ripple is $1. For me the possible price od the ripple after this hear will be $50-$100 so if thag happen for sure you will be happy.  But if you have extra money better to buy more altcoins.

Of course, the amount first causes a smile. But I read stories more than once when someone invested $ 50 into the business and became a millionaire))) Obviously, you need to find a promising coin and buy it. In my opinion, it is more profitable to buy cheap coins, since it is easier for them to collect "dollar weight"

Have a look on GAS or NEO. First coin made +47% profit today. I would invest 50$ in it.

Indeed, $ 50 is not a sum for investment. If you know how to trade on the exchange, then you can increase this amount a little, trading at the crypto exchange and then the amount already received to invest. Either buy an inexpensive promising coin (for example IOTA) on this money and forget about it for a year at least.

First you have to know where you want to invest it. You can invest it full time on one coin. For example you can invest it on bitcoin. You can buy bitcoin. It is good now to buy bitcoin as its price is the lowest. You can hold it for how many months. It can be the greatest pump when time goes by. And when that time comes, you can gain a lot of profit. Or you can invest that portion per portion. For example half of it invest it to bitcoin then the other half invest it in ethereum. You can also do trading. Buy an altcoin you know that it will be profitable then exchange/trade it when that time comes.

If i had 50$ for investing, i would prefer to unvest in some HYIP project and get a chance for fast XX. This is a reasonable risk considering the sum).

In a short perspective I would invest in tokens which are lower then 200 place at coinmarketcap or new coins which still not realised for example if you invest in tokens which are at higher places you have a lower chance that this coin will grow up high

Thinking about what to do with $50, not a bad idea since the money can high anytime if someone invest in a good ico and clean ico

I would not have invested so much in the crypto currency! unnecessarily special profit you will not see! on kryptonok it is necessary to enter with the sum a minimum in 1000 $

I will do some research first about altcoin that I will buy and resale. Then I will trade altcoin continuously to get multiple benefits. After enough profit data, I will allocate to buy bitcoin as a long-term asset.