252157760 has 28 divisors (see below), whose sum is σ = 600451428. Its totient is φ = 100862976.

The previous prime is 252157757. The next prime is 252157819. The reversal of 252157760 is 67751252.

It is a happy number.

252157760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 223084096 = 5392^2 + 14936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252157760.

It is a congruent number.

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, 393677 + ... + 394316.

Almost surely, 2^252157760 is an apocalyptic number.

252157760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252157760 is an abundant number, since it is smaller than the sum of its proper divisors (348293668).

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

252157760 is an equidigital number, since it uses as much as digits as its factorization.

252157760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788010 (or 788000 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 252157760 is about 15879.4760618857. The cubic root of 252157760 is about 631.7677403241.

The spelling of 252157760 in words is "two hundred fifty-two million, one hundred fifty-seven thousand, seven hundred sixty".