Fatto matematico: 5544 is the number of permutations of 9 items that fix 4 elements.
Trivia: 5544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 6th is the day in 12 BC that the Roman Emperor Augustus is named Pontifex Maximus, incorporating the position into that of the Emperor.