Need help with formulas

I'm trying to look for a formula that make a number add up everyday without me having to make any changes.
for example it a cell has the number 5 i want a formula that adds 6 to it everyday automatically.

kind of like the date update formula (TODAY() )but with numbers.


if you happen to know anything kindly contact me ASAP. my boss assigned this to me and I want to impress him.