'Fifty' in the Bible

The weight of the nails was fifty shekels of gold. He also overlaid the upper rooms with gold.

These were the chief officers of King Solomon, two hundred and fifty who ruled over the people.

And Huram by his servants sent him ships and servants who knew the sea; and they went with Solomon’s servants to Ophir, and took from there four hundred and fifty talents of gold and brought them to King Solomon.