57520612920 has 256 divisors, whose sum is σ = 187245273600. Its totient is φ = 14086379520.

The previous prime is 57520612889. The next prime is 57520612921. The reversal of 57520612920 is 2921602575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57520612921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25897410 + ... + 25899630.

It is an arithmetic number, because the mean of its divisors is an integer number (731426850).

Almost surely, 2^57520612920 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 57520612920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93622636800).

57520612920 is an abundant number, since it is smaller than the sum of its proper divisors (129724660680).

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

57520612920 is a wasteful number, since it uses less digits than its factorization.

57520612920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598 (or 2594 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 57520612920 in words is "fifty-seven billion, five hundred twenty million, six hundred twelve thousand, nine hundred twenty".