252404456 has 8 divisors (see below), whose sum is σ = 473258370. Its totient is φ = 126202224.

The previous prime is 252404443. The next prime is 252404483. The reversal of 252404456 is 654404252.

252404456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 212284900 + 40119556 = 14570^2 + 6334^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15775271 + ... + 15775286.

Almost surely, 2^252404456 is an apocalyptic number.

It is an amenable number.

252404456 is a deficient number, since it is larger than the sum of its proper divisors (220853914).

252404456 is a wasteful number, since it uses less digits than its factorization.

252404456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31550563 (or 31550559 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 252404456 is about 15887.2419255200. The cubic root of 252404456 is about 631.9737010367.

The spelling of 252404456 in words is "two hundred fifty-two million, four hundred four thousand, four hundred fifty-six".