252978992 has 20 divisors (see below), whose sum is σ = 560168016. Its totient is φ = 108419520.

The previous prime is 252978991. The next prime is 252979099. The reversal of 252978992 is 299879252.

It is not an unprimeable number, because it can be changed into a prime (252978991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129259 + ... + 1129482.

Almost surely, 2^252978992 is an apocalyptic number.

It is an amenable number.

252978992 is an abundant number, since it is smaller than the sum of its proper divisors (307189024).

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

252978992 is a wasteful number, since it uses less digits than its factorization.

252978992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258756 (or 2258750 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The square root of 252978992 is about 15905.3133260555. The cubic root of 252978992 is about 632.4528480111.

The spelling of 252978992 in words is "two hundred fifty-two million, nine hundred seventy-eight thousand, nine hundred ninety-two".