525808 has 20 divisors (see below), whose sum is σ = 1037880. Its totient is φ = 257984.

The previous prime is 525781. The next prime is 525809. The reversal of 525808 is 808525.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525809) 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 3 ways as a sum of consecutive naturals, for example, 666 + ... + 1222.

It is an arithmetic number, because the mean of its divisors is an integer number (51894).

2⁵²⁵⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

525808 is a deficient number, since it is larger than the sum of its proper divisors (512072).

525808 is a wasteful number, since it uses less digits than its factorization.

525808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 525808 is about 725.1261959135. The cubic root of 525808 is about 80.7127968131.

The spelling of 525808 in words is "five hundred twenty-five thousand, eight hundred eight".