6475 has 12 divisors (see below), whose sum is σ = 9424.
Its totient is φ = 4320.
The previous prime is 6473. The next prime is 6481. The reversal of 6475 is 5746.
Adding to 6475 its reverse (5746), we get a palindrome (12221).
Subtracting from 6475 its reverse (5746), we obtain a 6-th power (729 = 36).
It can be divided in two parts, 6 and 475, that multiplied together give a triangular number (2850 = T75).
It is not a de Polignac number, because 6475 - 21 = 6473 is a prime.
It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
6475 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (6473) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157 + ... + 193.
6475 is a deficient number, since it is larger than the sum of its proper divisors (2949).
6475 is a wasteful number, since it uses less digits than its factorization.
6475 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54 (or 49 counting only the distinct ones).
The product of its digits is 840, while the sum is 22.
The square root of 6475 is about 80.4673846972.
The cubic root of 6475 is about 18.6385986900.
The spelling of 6475 in words is "six thousand, four hundred seventy-five".