52539990540 has 72 divisors (see below), whose sum is σ = 155262285360. Its totient is φ = 13273255296.

The previous prime is 52539990487. The next prime is 52539990553. The reversal of 52539990540 is 4509993525.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1191175 + ... + 1234494.

It is an arithmetic number, because the mean of its divisors is an integer number (2156420630).

Almost surely, 2^52539990540 is an apocalyptic number.

It is an amenable number.

52539990540 is an abundant number, since it is smaller than the sum of its proper divisors (102722294820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52539990540 is a wasteful number, since it uses less digits than its factorization.

52539990540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425719 (or 2425698 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 51.

The spelling of 52539990540 in words is "fifty-two billion, five hundred thirty-nine million, nine hundred ninety thousand, five hundred forty".