252791512 has 8 divisors (see below), whose sum is σ = 473984100. Its totient is φ = 126395752.

The previous prime is 252791501. The next prime is 252791531. The reversal of 252791512 is 215197252.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×252791512² = 127807097078492288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15799462 + ... + 15799477.

Almost surely, 2^252791512 is an apocalyptic number.

It is an amenable number.

252791512 is a deficient number, since it is larger than the sum of its proper divisors (221192588).

252791512 is a wasteful number, since it uses less digits than its factorization.

252791512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31598945 (or 31598941 counting only the distinct ones).

The product of its digits is 12600, while the sum is 34.

The square root of 252791512 is about 15899.4186057227. The cubic root of 252791512 is about 632.2965747412.

The spelling of 252791512 in words is "two hundred fifty-two million, seven hundred ninety-one thousand, five hundred twelve".