252724635 has 24 divisors (see below), whose sum is σ = 463825440. Its totient is φ = 126857472.

The previous prime is 252724597. The next prime is 252724639. The reversal of 252724635 is 536427252.

It is not a de Polignac number, because 252724635 - 2¹⁸ = 252462491 is a prime.

It is a super-2 number, since 2×252724635² = 127739482271766450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252724635.

It is not an unprimeable number, because it can be changed into a prime (252724639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164415 + ... + 165944.

It is an arithmetic number, because the mean of its divisors is an integer number (19326060).

Almost surely, 2^252724635 is an apocalyptic number.

252724635 is a deficient number, since it is larger than the sum of its proper divisors (211100805).

252724635 is a wasteful number, since it uses less digits than its factorization.

252724635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330387 (or 330384 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 252724635 is about 15897.3153393899. The cubic root of 252724635 is about 632.2408109654.

The spelling of 252724635 in words is "two hundred fifty-two million, seven hundred twenty-four thousand, six hundred thirty-five".