252556522144 has 24 divisors (see below), whose sum is σ = 497262345300. Its totient is φ = 126267672576.

The previous prime is 252556522129. The next prime is 252556522189. The reversal of 252556522144 is 441225655252.

It can be written as a sum of positive squares in 2 ways, for example, as 233880566544 + 18675955600 = 483612^2 + 136660^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252556522144.

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, 63952 + ... + 713584.

Almost surely, 2^252556522144 is an apocalyptic number.

It is an amenable number.

252556522144 is a deficient number, since it is larger than the sum of its proper divisors (244705823156).

252556522144 is a wasteful number, since it uses less digits than its factorization.

252556522144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661792 (or 661784 counting only the distinct ones).

The product of its digits is 960000, while the sum is 43.

The spelling of 252556522144 in words is "two hundred fifty-two billion, five hundred fifty-six million, five hundred twenty-two thousand, one hundred forty-four".