Fatto generale: 5175 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 5175 is an uninteresting number.
Trivia: 5175 is an unremarkable number.
Data storica: March 2nd is the day in 1888 that the Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.