'Fifty' in the Bible

And it came to pass after this, that Absalom prepared him a chariot and horses, and fifty men to run before him.

And the king said unto Araunah, Nay; but I will verily buy it of thee at a price. Neither will I offer burnt-offerings unto Jehovah my God which cost me nothing. So David bought the threshing-floor and the oxen for fifty shekels of silver.