525838631 has 2 divisors, whose sum is σ = 525838632. Its totient is φ = 525838630.

The previous prime is 525838619. The next prime is 525838633. The reversal of 525838631 is 136838525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525838631 - 2²² = 521644327 is a prime.

It is a super-2 number, since 2×525838631² = 553012531703908322, which contains 22 as substring.

Together with 525838633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525838633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262919315 + 262919316.

It is an arithmetic number, because the mean of its divisors is an integer number (262919316).

Almost surely, 2^525838631 is an apocalyptic number.

525838631 is a deficient number, since it is larger than the sum of its proper divisors (1).

525838631 is an equidigital number, since it uses as much as digits as its factorization.

525838631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 525838631 is about 22931.1716011197. The cubic root of 525838631 is about 807.1436409347.

The spelling of 525838631 in words is "five hundred twenty-five million, eight hundred thirty-eight thousand, six hundred thirty-one".