252864562 has 16 divisors (see below), whose sum is σ = 402908472. Its totient is φ = 118609920.

The previous prime is 252864539. The next prime is 252864571. The reversal of 252864562 is 265468252.

It can be written as a sum of positive squares in 4 ways, for example, as 179265321 + 73599241 = 13389^2 + 8579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239 + ... + 22522.

Almost surely, 2^252864562 is an apocalyptic number.

252864562 is a deficient number, since it is larger than the sum of its proper divisors (150043910).

252864562 is a wasteful number, since it uses less digits than its factorization.

252864562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24093.

The product of its digits is 230400, while the sum is 40.

The square root of 252864562 is about 15901.7156935973. The cubic root of 252864562 is about 632.3574744868.

The spelling of 252864562 in words is "two hundred fifty-two million, eight hundred sixty-four thousand, five hundred sixty-two".