52908992640 has 1152 divisors, whose sum is σ = 226274368320. Its totient is φ = 11774730240.

The previous prime is 52908992603. The next prime is 52908992659. The reversal of 52908992640 is 4629980925.

It is a happy number.

52908992640 is a `hidden beast` number, since 5 + 290 + 8 + 99 + 264 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 403885375 + ... + 403885505.

Almost surely, 2^52908992640 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 52908992640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113137184160).

52908992640 is an abundant number, since it is smaller than the sum of its proper divisors (173365375680).

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

52908992640 is a wasteful number, since it uses less digits than its factorization.

52908992640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 52908992640 in words is "fifty-two billion, nine hundred eight million, nine hundred ninety-two thousand, six hundred forty".