252979560 has 48 divisors (see below), whose sum is σ = 822184740. Its totient is φ = 67461120.

The previous prime is 252979549. The next prime is 252979579. The reversal of 252979560 is 65979252.

252979560 is a `hidden beast` number, since 2 + 529 + 79 + 56 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 250335684 + 2643876 = 15822^2 + 1626^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 351001 + ... + 351720.

Almost surely, 2^252979560 is an apocalyptic number.

252979560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252979560 is an abundant number, since it is smaller than the sum of its proper divisors (569205180).

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

252979560 is a wasteful number, since it uses less digits than its factorization.

252979560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702738 (or 702731 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 252979560 is about 15905.3311817139. The cubic root of 252979560 is about 632.4533213481.

The spelling of 252979560 in words is "two hundred fifty-two million, nine hundred seventy-nine thousand, five hundred sixty".