252972776 has 32 divisors (see below), whose sum is σ = 542640000. Its totient is φ = 108305856.

The previous prime is 252972751. The next prime is 252972793. The reversal of 252972776 is 677279252.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 252972776.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76730 + ... + 79958.

It is an arithmetic number, because the mean of its divisors is an integer number (16957500).

Almost surely, 2^252972776 is an apocalyptic number.

It is an amenable number.

252972776 is an abundant number, since it is smaller than the sum of its proper divisors (289667224).

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

252972776 is a wasteful number, since it uses less digits than its factorization.

252972776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641 (or 4637 counting only the distinct ones).

The product of its digits is 740880, while the sum is 47.

The square root of 252972776 is about 15905.1179184563. The cubic root of 252972776 is about 632.4476679247.

The spelling of 252972776 in words is "two hundred fifty-two million, nine hundred seventy-two thousand, seven hundred seventy-six".