252166920 has 32 divisors (see below), whose sum is σ = 756501120. Its totient is φ = 67244480.

The previous prime is 252166913. The next prime is 252166939. The reversal of 252166920 is 29661252.

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, 1050576 + ... + 1050815.

It is an arithmetic number, because the mean of its divisors is an integer number (23640660).

Almost surely, 2^252166920 is an apocalyptic number.

252166920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252166920 is an abundant number, since it is smaller than the sum of its proper divisors (504334200).

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

252166920 is a wasteful number, since it uses less digits than its factorization.

252166920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101405 (or 2101401 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 252166920 is about 15879.7644818807. The cubic root of 252166920 is about 631.7753901943.

The spelling of 252166920 in words is "two hundred fifty-two million, one hundred sixty-six thousand, nine hundred twenty".