252640915881124 has 81 divisors (see below), whose sum is σ = 456444441595233. Its totient is φ = 122354210257056.

The previous prime is 252640915881113. The next prime is 252640915881187. The reversal of 252640915881124 is 421188519046252.

The square root of 252640915881124 is 15894682.

It is a perfect power (a square), and thus also a powerful number.

252640915881124 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 only one way, i.e., 226066560960100 + 26574354921024 = 15035510^2 + 5155032^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 408143644087 + ... + 408143644705.

Almost surely, 2^{252640915881124} is an apocalyptic number.

252640915881124 is the 15894682-nd square number.

It is an amenable number.

252640915881124 is a deficient number, since it is larger than the sum of its proper divisors (203803525714109).

252640915881124 is an frugal number, since it uses more digits than its factorization.

252640915881124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 58.

The spelling of 252640915881124 in words is "two hundred fifty-two trillion, six hundred forty billion, nine hundred fifteen million, eight hundred eighty-one thousand, one hundred twenty-four".