525285404 has 12 divisors (see below), whose sum is σ = 1050570864. Its totient is φ = 225122304.

The previous prime is 525285367. The next prime is 525285413. The reversal of 525285404 is 404582525.

525285404 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380069 + ... + 9380124.

It is an arithmetic number, because the mean of its divisors is an integer number (87547572).

Almost surely, 2^525285404 is an apocalyptic number.

It is an amenable number.

525285404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525285404 is a wasteful number, since it uses less digits than its factorization.

525285404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760204 (or 18760202 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The square root of 525285404 is about 22919.1056544534. The cubic root of 525285404 is about 806.8604803366.

The spelling of 525285404 in words is "five hundred twenty-five million, two hundred eighty-five thousand, four hundred four".