252683631 has 20 divisors (see below), whose sum is σ = 399671712. Its totient is φ = 158545728.

The previous prime is 252683621. The next prime is 252683647. The reversal of 252683631 is 136386252.

It is a happy number.

It is not a de Polignac number, because 252683631 - 2⁶ = 252683567 is a prime.

It is a super-2 number, since 2×252683631² = 127698034750688322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252683621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90375 + ... + 93128.

Almost surely, 2^252683631 is an apocalyptic number.

252683631 is a deficient number, since it is larger than the sum of its proper divisors (146988081).

252683631 is a wasteful number, since it uses less digits than its factorization.

252683631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183532 (or 183523 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 252683631 is about 15896.0256353593. The cubic root of 252683631 is about 632.2066159025.

The spelling of 252683631 in words is "two hundred fifty-two million, six hundred eighty-three thousand, six hundred thirty-one".