There wouldn't be a specific number but most paper is made from Pine Tree's Therefore , the tree is always about 1 foot in diameter and 60ft tall.So that's around 81,430 cubic inches of wood. 805/5*500 , this out come will get you your answer of how many sheets of paper is produced from one tree, there is no specific answer. Roughly that is 80,500 sheets of paper from a single tree.
i hope this helps.