525225531 has 32 divisors (see below), whose sum is σ = 750896640. Its totient is φ = 325603584.

The previous prime is 525225511. The next prime is 525225551. The reversal of 525225531 is 135522525.

It is an interprime number because it is at equal distance from previous prime (525225511) and next prime (525225551).

It is not a de Polignac number, because 525225531 - 2¹⁰ = 525224507 is a prime.

It is a super-2 number, since 2×525225531² = 551723716828463922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525225511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804001 + ... + 804653.

It is an arithmetic number, because the mean of its divisors is an integer number (23465520).

Almost surely, 2^525225531 is an apocalyptic number.

525225531 is a deficient number, since it is larger than the sum of its proper divisors (225671109).

525225531 is a wasteful number, since it uses less digits than its factorization.

525225531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its digits is 15000, while the sum is 30.

The square root of 525225531 is about 22917.7994362461. The cubic root of 525225531 is about 806.8298233561.

The spelling of 525225531 in words is "five hundred twenty-five million, two hundred twenty-five thousand, five hundred thirty-one".