52721539472 has 40 divisors (see below), whose sum is σ = 118052265600. Its totient is φ = 22341065472.

The previous prime is 52721539471. The next prime is 52721539517. The reversal of 52721539472 is 27493512725.

It is not an unprimeable number, because it can be changed into a prime (52721539471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634572 + ... + 2654507.

It is an arithmetic number, because the mean of its divisors is an integer number (2951306640).

Almost surely, 2^52721539472 is an apocalyptic number.

It is an amenable number.

52721539472 is an abundant number, since it is smaller than the sum of its proper divisors (65330726128).

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

52721539472 is a wasteful number, since it uses less digits than its factorization.

52721539472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289183 (or 5289177 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 47.

The spelling of 52721539472 in words is "fifty-two billion, seven hundred twenty-one million, five hundred thirty-nine thousand, four hundred seventy-two".