252779172 has 36 divisors (see below), whose sum is σ = 595806288. Its totient is φ = 83408000.

The previous prime is 252779147. The next prime is 252779183. The reversal of 252779172 is 271977252.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 630172 + ... + 630572.

Almost surely, 2^252779172 is an apocalyptic number.

It is an amenable number.

252779172 is an abundant number, since it is smaller than the sum of its proper divisors (343027116).

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

252779172 is a wasteful number, since it uses less digits than its factorization.

252779172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 537 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 252779172 is about 15899.0305364824. The cubic root of 252779172 is about 632.2862860694.

The spelling of 252779172 in words is "two hundred fifty-two million, seven hundred seventy-nine thousand, one hundred seventy-two".