252977660 has 24 divisors (see below), whose sum is σ = 572119296. Its totient is φ = 93407040.

The previous prime is 252977651. The next prime is 252977677. The reversal of 252977660 is 66779252.

252977660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486236 + ... + 486755.

It is an arithmetic number, because the mean of its divisors is an integer number (23838304).

Almost surely, 2^252977660 is an apocalyptic number.

252977660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252977660 is an abundant number, since it is smaller than the sum of its proper divisors (319141636).

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

252977660 is a wasteful number, since it uses less digits than its factorization.

252977660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973013 (or 973011 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 252977660 is about 15905.2714532007. The cubic root of 252977660 is about 632.4517379997.

The spelling of 252977660 in words is "two hundred fifty-two million, nine hundred seventy-seven thousand, six hundred sixty".