252170656 has 24 divisors (see below), whose sum is σ = 525665700. Its totient is φ = 118668288.

The previous prime is 252170627. The next prime is 252170669. The reversal of 252170656 is 656071252.

It can be written as a sum of positive squares in 2 ways, for example, as 240746256 + 11424400 = 15516^2 + 3380^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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 in 3 ways as a sum of consecutive naturals, for example, 231231 + ... + 232318.

Almost surely, 2^252170656 is an apocalyptic number.

It is an amenable number.

252170656 is an abundant number, since it is smaller than the sum of its proper divisors (273495044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252170656 is a wasteful number, since it uses less digits than its factorization.

252170656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463576 (or 463568 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 252170656 is about 15879.8821154315. The cubic root of 252170656 is about 631.7785102192.

The spelling of 252170656 in words is "two hundred fifty-two million, one hundred seventy thousand, six hundred fifty-six".