252787880 has 16 divisors (see below), whose sum is σ = 568772820. Its totient is φ = 101115136.

The previous prime is 252787861. The next prime is 252787897. The reversal of 252787880 is 88787252.

It can be written as a sum of positive squares in 2 ways, for example, as 204318436 + 48469444 = 14294^2 + 6962^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3159809 + ... + 3159888.

Almost surely, 2^252787880 is an apocalyptic number.

252787880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252787880 is an abundant number, since it is smaller than the sum of its proper divisors (315984940).

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

252787880 is a wasteful number, since it uses less digits than its factorization.

252787880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319708 (or 6319704 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 252787880 is about 15899.3043872995. The cubic root of 252787880 is about 632.2935465380.

The spelling of 252787880 in words is "two hundred fifty-two million, seven hundred eighty-seven thousand, eight hundred eighty".