252622857 has 16 divisors (see below), whose sum is σ = 355026240. Its totient is φ = 159536832.

The previous prime is 252622793. The next prime is 252622861. The reversal of 252622857 is 758226252.

It is not a de Polignac number, because 252622857 - 2⁶ = 252622793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252622457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22783 + ... + 32004.

It is an arithmetic number, because the mean of its divisors is an integer number (22189140).

Almost surely, 2^252622857 is an apocalyptic number.

It is an amenable number.

252622857 is a deficient number, since it is larger than the sum of its proper divisors (102403383).

252622857 is a wasteful number, since it uses less digits than its factorization.

252622857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54872.

The product of its digits is 134400, while the sum is 39.

The square root of 252622857 is about 15894.1139105016. The cubic root of 252622857 is about 632.1559269501.

The spelling of 252622857 in words is "two hundred fifty-two million, six hundred twenty-two thousand, eight hundred fifty-seven".