252557320 has 32 divisors (see below), whose sum is σ = 580348800. Its totient is φ = 98872768.

The previous prime is 252557311. The next prime is 252557323. The reversal of 252557320 is 23755252.

It is not an unprimeable number, because it can be changed into a prime (252557323) 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, 65290 + ... + 69049.

It is an arithmetic number, because the mean of its divisors is an integer number (18135900).

Almost surely, 2^252557320 is an apocalyptic number.

252557320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252557320 is an abundant number, since it is smaller than the sum of its proper divisors (327791480).

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

252557320 is a wasteful number, since it uses less digits than its factorization.

252557320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134397 (or 134393 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 252557320 is about 15892.0521016010. The cubic root of 252557320 is about 632.1012562754.

The spelling of 252557320 in words is "two hundred fifty-two million, five hundred fifty-seven thousand, three hundred twenty".