Satoshi is worth .00000001 bitcoin so 5,000 satoshi is worth $1.81 or so at current prices. It is used often on the crypto faucets I participate in and is a common way for PTC - paid to click advertising cost is charged and also how one is paid for clicking.

I currently have 499 new signups this month on Dutchy and am in 5th place in the referral contest for the month. If I hold this place I will receive a 3 million Dutchy bonus. I pay in satoshi for the majority of the advertising that has brought me those referrals. I’ve never gotten this many signups in one month before especially not in this current market. The place I am getting them from is apparently hot.