252556634 has 16 divisors (see below), whose sum is σ = 419445216. Its totient is φ = 113084400.

The previous prime is 252556631. The next prime is 252556651. The reversal of 252556634 is 436655252.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252556631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84197 + ... + 87144.

It is an arithmetic number, because the mean of its divisors is an integer number (26215326).

Almost surely, 2^252556634 is an apocalyptic number.

252556634 is a deficient number, since it is larger than the sum of its proper divisors (166888582).

252556634 is a wasteful number, since it uses less digits than its factorization.

252556634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171421.

The product of its digits is 216000, while the sum is 38.

The square root of 252556634 is about 15892.0305184706. The cubic root of 252556634 is about 632.1006839672.

The spelling of 252556634 in words is "two hundred fifty-two million, five hundred fifty-six thousand, six hundred thirty-four".