252510856 has 16 divisors (see below), whose sum is σ = 509877900. Its totient is φ = 116543424.

The previous prime is 252510833. The next prime is 252510871. The reversal of 252510856 is 658015252.

It can be written as a sum of positive squares in 2 ways, for example, as 244296900 + 8213956 = 15630^2 + 2866^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213891 + ... + 1214098.

Almost surely, 2^252510856 is an apocalyptic number.

252510856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

252510856 is an abundant number, since it is smaller than the sum of its proper divisors (257367044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252510856 is a wasteful number, since it uses less digits than its factorization.

252510856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428008 (or 2428004 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 252510856 is about 15890.5901715449. The cubic root of 252510856 is about 632.0624904828.

The spelling of 252510856 in words is "two hundred fifty-two million, five hundred ten thousand, eight hundred fifty-six".