252537805513 has 16 divisors (see below), whose sum is σ = 297982551040. Its totient is φ = 209437747200.

The previous prime is 252537805447. The next prime is 252537805543. The reversal of 252537805513 is 315508735252.

It is a cyclic number.

It is not a de Polignac number, because 252537805513 - 2¹³ = 252537797321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252537805543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035793 + ... + 1256161.

It is an arithmetic number, because the mean of its divisors is an integer number (18623909440).

Almost surely, 2^252537805513 is an apocalyptic number.

It is an amenable number.

252537805513 is a deficient number, since it is larger than the sum of its proper divisors (45444745527).

252537805513 is a wasteful number, since it uses less digits than its factorization.

252537805513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225688.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 252537805513 in words is "two hundred fifty-two billion, five hundred thirty-seven million, eight hundred five thousand, five hundred thirteen".