52912949856 has 96 divisors (see below), whose sum is σ = 150657454080. Its totient is φ = 16163725824.

The previous prime is 52912949849. The next prime is 52912949857. The reversal of 52912949856 is 65894921925.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 52912949856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52912949857) 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, 20961 + ... + 325983.

It is an arithmetic number, because the mean of its divisors is an integer number (1569348480).

Almost surely, 2^52912949856 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 52912949856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75328727040).

52912949856 is an abundant number, since it is smaller than the sum of its proper divisors (97744504224).

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

52912949856 is a wasteful number, since it uses less digits than its factorization.

52912949856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305188 (or 305180 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 60.

The spelling of 52912949856 in words is "fifty-two billion, nine hundred twelve million, nine hundred forty-nine thousand, eight hundred fifty-six".