1 Kings 9:24 (KJV)

But of the children of Israel did Solomon make no bondmen: but they were men of war, and his servants, and his princes, and his captains, and rulers of his chariots, and his horsemen.

These were the chief of the officers that were over Solomon’s work, five hundred and fifty, which bare rule over the people that wrought in the work.

But Pharaoh’s daughter came up out of the city of David unto her house which Solomon had built for her: then did he build Millo.

And three times in a year did Solomon offer burnt offerings and peace offerings upon the altar which he built unto the Lord, and he burnt incense upon the altar that was before the Lord. So he finished the house.

And king Solomon made a navy of ships in Ezion–geber, which is beside Eloth, on the shore of the Red sea, in the land of Edom.