Fatto generale: 6526 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6526 is the smallest number whose 10^{th} power contains exactly the same digits as another 10^{th} power.
Trivia: 6526 is an unremarkable number.
Data storica: November 12th is the day in 2011 that Silvio Berlusconi resigns as Prime Minister of Italy due, in large part, to the European sovereign debt crisis.