Fait mathématique: 6594 is a value of n for which 5n and 7n together use each digit exactly once.
Culture générale: 6594 is an unremarkable number.
Date historique: January 19th is the day in 1996 that the barge North Cape oil spill occurs as an engine fire forces the tugboat Scandia ashore on Moonstone Beach in South Kingstown, Rhode Island.