'Fifty' in the Bible

And they captured their livestock: fifty thousand of their camels; two hundred and fifty thousand sheep; two thousand donkeys; and one hundred thousand men alive.

And the sons of Ulam were men [who were] mighty warriors, bowmen, and [they had] many sons and grandsons, one hundred and fifty. All these were Benjaminites.

From Zebulun, those who went out armed, equipped for battle with all the weapons of war: fifty thousand to help David {with singleness of purpose}.