252562105521 has 24 divisors (see below), whose sum is σ = 397995567840. Its totient is φ = 153060667200.

The previous prime is 252562105513. The next prime is 252562105573. The reversal of 252562105521 is 125501265252.

252562105521 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 621 + 0 + 5 + 5 + 21 = 666.

It is not a de Polignac number, because 252562105521 - 2³ = 252562105513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252562104521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2634925 + ... + 2729093.

It is an arithmetic number, because the mean of its divisors is an integer number (16583148660).

Almost surely, 2^252562105521 is an apocalyptic number.

It is an amenable number.

252562105521 is a deficient number, since it is larger than the sum of its proper divisors (145433462319).

252562105521 is a wasteful number, since it uses less digits than its factorization.

252562105521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121277 (or 121274 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 252562105521 in words is "two hundred fifty-two billion, five hundred sixty-two million, one hundred five thousand, five hundred twenty-one".