'Fifty' in the Bible
This is how you shall make it. The length of the ship will be three hundred cubits, its breadth fifty cubits, and its height thirty cubits.
The waters prevailed on the earth one hundred fifty days.
The waters receded from the earth continually. After the end of one hundred fifty days the waters decreased.
All the days of Noah were nine hundred fifty years, then he died.
What if there are fifty righteous within the city? Will you consume and not spare the place for the fifty righteous who are in it?
Yahweh said, "If I find in Sodom fifty righteous within the city, then I will spare all the place for their sake."
What if there will lack five of the fifty righteous? Will you destroy all the city for lack of five?" He said, "I will not destroy it, if I find forty-five there."