525915 has 48 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 241920.

The previous prime is 525913. The next prime is 525923. The reversal of 525915 is 519525.

525915 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 525915 - 2¹ = 525913 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

Together with 522405 it forms an amicable pair .

525915 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (525913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16950 + ... + 16980.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2⁵²⁵⁹¹⁵ is an apocalyptic number.

525915 is a deficient number, since it is larger than the sum of its proper divisors (522405).

525915 is a wasteful number, since it uses less digits than its factorization.

525915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 81 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 525915 is about 725.1999724214. The cubic root of 525915 is about 80.7182713612.

The spelling of 525915 in words is "five hundred twenty-five thousand, nine hundred fifteen".