This is a very small amount of money for investment. Try to earn some airdrop altcoins or better participate in bounty campaign for increase your funds.

If you could invest only $ 50, then here's the plan:
1. Study the most prospective ICO.
2. To invest all this huge sum into one project. The most worthy.

I invest in these coins because it's the smallest amount and it is the very potentials coins.
DASH, RIPPLE & DEX

If I have that money,  I will invest it all in bitcoin. Even though the price now is low, I will take that low price as an opportunity to buy since it was very affordable. i will take the risk of holding since I am hoping that in the future it can gives me a large profit.

I would invest in a ZIL (Zilliqa) project. It is the world's First high-bandwidth public blockchain platform designed to scale up to thousands of transactions per second. A direct competitor to the EOS ETH PLASMA RAIDEN and similar projects. Potential of this coin X10 for the year

My investment strategy is to diversified meaning putting investments in different crypto. 
If I have $50 right now I will put it in cheap altcoin like dent and bytecoin, these are very cheap coins with value under 1 dollar, but have a decent capitalization, I am not suggesting to invest in large crypto because the initial investment of $50 will just not give you a very small amount of income and hinder you from investing in many cryto as since the price is high, your $50 will just be able to get one or two crypto to invest into.

I think it is pretty much blind investment. $50 is too low to invest for meaningful returns.
I guess its better to make your initial investment at least around couple thousand dollars, ethereum is to go.

to buy token with the less price as the use with returns of drawing from the consequence of market.
that the price to be running on future as referring contrast indication to request of manage on works with the extent examination as covering the backup of supports as managing use with one of equity drawing on supports with the field of business with the crypto currency of the finance.

`With $ 50 There is quite a number of thing you can do, You can buy small units of high value coins such as Bitcoins and Ethereum and hold them, but you wont get much out of it ,The reasonable thing is to do with that money is to invest in cheap but promising ICOs  that will grow and earn you good returns, $50 is a good amount that can get you very good returns on your investment