'Fifty' in the Bible

even to the next day after the seventh Sabbath you shall number fifty days; and you shall offer a new meal offering to Yahweh.

Your valuation shall be of a male from twenty years old even to sixty years old, even your valuation shall be fifty shekels of silver, after the shekel of the sanctuary.

"'If a man dedicates to Yahweh part of the field of his possession, then your valuation shall be according to the seed for it: the sowing of a homer of barley shall be valued at fifty shekels of silver.