252440252 has 6 divisors (see below), whose sum is σ = 441770448. Its totient is φ = 126220124.

The previous prime is 252440231. The next prime is 252440261. The reversal of 252440252 is 252044252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31555028 + ... + 31555035.

It is an arithmetic number, because the mean of its divisors is an integer number (73628408).

Almost surely, 2^252440252 is an apocalyptic number.

It is an amenable number.

252440252 is a deficient number, since it is larger than the sum of its proper divisors (189330196).

252440252 is a wasteful number, since it uses less digits than its factorization.

252440252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63110067 (or 63110065 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 252440252 is about 15888.3684499070. The cubic root of 252440252 is about 632.0035751280.

The spelling of 252440252 in words is "two hundred fifty-two million, four hundred forty thousand, two hundred fifty-two".