252515257616 has 10 divisors (see below), whose sum is σ = 489248311662. Its totient is φ = 126257628800.

The previous prime is 252515257573. The next prime is 252515257667. The reversal of 252515257616 is 616752515252.

It can be written as a sum of positive squares in only one way, i.e., 181544166400 + 70971091216 = 426080^2 + 266404^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7891101785 + ... + 7891101816.

Almost surely, 2^252515257616 is an apocalyptic number.

It is an amenable number.

252515257616 is a deficient number, since it is larger than the sum of its proper divisors (236733054046).

252515257616 is a wasteful number, since it uses less digits than its factorization.

252515257616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15782203609 (or 15782203603 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 47.

The spelling of 252515257616 in words is "two hundred fifty-two billion, five hundred fifteen million, two hundred fifty-seven thousand, six hundred sixteen".