525431031 has 16 divisors (see below), whose sum is σ = 722923488. Its totient is φ = 339238400.

The previous prime is 525431009. The next prime is 525431033. The reversal of 525431031 is 130134525.

It is a cyclic number.

It is not a de Polignac number, because 525431031 - 2⁹ = 525430519 is a prime.

It is a super-2 number, since 2×525431031² = 552155536675445922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525430992 and 525431010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525431033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261 + ... + 32441.

It is an arithmetic number, because the mean of its divisors is an integer number (45182718).

Almost surely, 2^525431031 is an apocalyptic number.

525431031 is a deficient number, since it is larger than the sum of its proper divisors (197492457).

525431031 is a wasteful number, since it uses less digits than its factorization.

525431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31362.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 525431031 is about 22922.2824125348. The cubic root of 525431031 is about 806.9350365134.

Adding to 525431031 its reverse (130134525), we get a palindrome (655565556).

The spelling of 525431031 in words is "five hundred twenty-five million, four hundred thirty-one thousand, thirty-one".