Fatto generale: 555 is the number of keyboard sonatas written by Domenico Scarlatti, according to the catalog by Ralph Kirkpatrick.
Fatto matematico: 555 is a boring number.
Trivia: 555 is the number of seats of the airliner A380-800.
Data storica: July 8th is the day in 1808 that Joseph Bonaparte approves the Bayonne Statute, a royal charter intended as the basis for his rule as king of Spain.