252772424 has 8 divisors (see below), whose sum is σ = 473948310. Its totient is φ = 126386208.

The previous prime is 252772411. The next prime is 252772427. The reversal of 252772424 is 424277252.

It can be written as a sum of positive squares in only one way, i.e., 192709924 + 60062500 = 13882^2 + 7750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (252772427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15798269 + ... + 15798284.

Almost surely, 2^252772424 is an apocalyptic number.

It is an amenable number.

252772424 is a deficient number, since it is larger than the sum of its proper divisors (221175886).

252772424 is a wasteful number, since it uses less digits than its factorization.

252772424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31596559 (or 31596555 counting only the distinct ones).

The product of its digits is 62720, while the sum is 35.

The square root of 252772424 is about 15898.8183208690. The cubic root of 252772424 is about 632.2806596751.

The spelling of 252772424 in words is "two hundred fifty-two million, seven hundred seventy-two thousand, four hundred twenty-four".