525550431 has 32 divisors (see below), whose sum is σ = 860224000. Its totient is φ = 284497920.

The previous prime is 525550357. The next prime is 525550451. The reversal of 525550431 is 134055525.

It is a happy number.

It is not a de Polignac number, because 525550431 - 2⁷ = 525550303 is a prime.

It is a super-2 number, since 2×525550431² = 552406511048571522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525550451) 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, 6111 + ... + 32991.

It is an arithmetic number, because the mean of its divisors is an integer number (26882000).

Almost surely, 2^525550431 is an apocalyptic number.

525550431 is a deficient number, since it is larger than the sum of its proper divisors (334673569).

525550431 is a wasteful number, since it uses less digits than its factorization.

525550431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26924 (or 26910 counting only the distinct ones).

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

The square root of 525550431 is about 22924.8867172774. The cubic root of 525550431 is about 806.9961550621.

The spelling of 525550431 in words is "five hundred twenty-five million, five hundred fifty thousand, four hundred thirty-one".