252526778992 has 20 divisors (see below), whose sum is σ = 489285743976. Its totient is φ = 126259490240.

The previous prime is 252526778981. The next prime is 252526779007. The reversal of 252526778992 is 299877625252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331767 + ... + 784297.

Almost surely, 2^252526778992 is an apocalyptic number.

It is an amenable number.

252526778992 is a deficient number, since it is larger than the sum of its proper divisors (236758964984).

252526778992 is a wasteful number, since it uses less digits than its factorization.

252526778992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487416 (or 487410 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 64.

The spelling of 252526778992 in words is "two hundred fifty-two billion, five hundred twenty-six million, seven hundred seventy-eight thousand, nine hundred ninety-two".