252772224 has 32 divisors (see below), whose sum is σ = 671427240. Its totient is φ = 84257280.

The previous prime is 252772217. The next prime is 252772237. The reversal of 252772224 is 422277252.

252772224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 328747 + ... + 329514.

Almost surely, 2^252772224 is an apocalyptic number.

252772224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252772224 is an abundant number, since it is smaller than the sum of its proper divisors (418655016).

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

252772224 is an equidigital number, since it uses as much as digits as its factorization.

252772224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658278 (or 658266 counting only the distinct ones).

The product of its digits is 31360, while the sum is 33.

The square root of 252772224 is about 15898.8120310921. The cubic root of 252772224 is about 632.2804929162.

The spelling of 252772224 in words is "two hundred fifty-two million, seven hundred seventy-two thousand, two hundred twenty-four".