252636999 has 16 divisors (see below), whose sum is σ = 347280480. Its totient is φ = 163244160.

The previous prime is 252636971. The next prime is 252637001. The reversal of 252636999 is 999636252.

It is not a de Polignac number, because 252636999 - 2⁷ = 252636871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252636959) 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, 25629 + ... + 34089.

It is an arithmetic number, because the mean of its divisors is an integer number (21705030).

Almost surely, 2^252636999 is an apocalyptic number.

252636999 is a deficient number, since it is larger than the sum of its proper divisors (94643481).

252636999 is a wasteful number, since it uses less digits than its factorization.

252636999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770.

The product of its digits is 1574640, while the sum is 51.

The square root of 252636999 is about 15894.5587859494. The cubic root of 252636999 is about 632.1677229034.

The spelling of 252636999 in words is "two hundred fifty-two million, six hundred thirty-six thousand, nine hundred ninety-nine".