525635013 has 4 divisors (see below), whose sum is σ = 700846688. Its totient is φ = 350423340.

The previous prime is 525635009. The next prime is 525635021. The reversal of 525635013 is 310536525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 525635013 - 2² = 525635009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525635023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87605833 + ... + 87605838.

It is an arithmetic number, because the mean of its divisors is an integer number (175211672).

Almost surely, 2^525635013 is an apocalyptic number.

It is an amenable number.

525635013 is a deficient number, since it is larger than the sum of its proper divisors (175211675).

525635013 is a wasteful number, since it uses less digits than its factorization.

525635013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175211674.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 525635013 is about 22926.7314068098. The cubic root of 525635013 is about 807.0394453494.

The spelling of 525635013 in words is "five hundred twenty-five million, six hundred thirty-five thousand, thirteen".