52991499624 has 128 divisors (see below), whose sum is σ = 162625920000. Its totient is φ = 14343521472.

The previous prime is 52991499607. The next prime is 52991499679. The reversal of 52991499624 is 42699419925.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12994 + ... + 325809.

It is an arithmetic number, because the mean of its divisors is an integer number (1270515000).

Almost surely, 2^52991499624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52991499624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81312960000).

52991499624 is an abundant number, since it is smaller than the sum of its proper divisors (109634420376).

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

52991499624 is a wasteful number, since it uses less digits than its factorization.

52991499624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338852 (or 338834 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 60.

The spelling of 52991499624 in words is "fifty-two billion, nine hundred ninety-one million, four hundred ninety-nine thousand, six hundred twenty-four".