525906 has 16 divisors (see below), whose sum is σ = 1168800. Its totient is φ = 175284.

The previous prime is 525893. The next prime is 525913. The reversal of 525906 is 609525.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 525906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4816 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (73050).

2⁵²⁵⁹⁰⁶ is an apocalyptic number.

525906 is an abundant number, since it is smaller than the sum of its proper divisors (642894).

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

525906 is a wasteful number, since it uses less digits than its factorization.

525906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750 (or 9744 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 525906 is about 725.1937672098. The cubic root of 525906 is about 80.7178109138.

It can be divided in two parts, 525 and 906, that added together give a triangular number (1431 = T₅₃).

The spelling of 525906 in words is "five hundred twenty-five thousand, nine hundred six".