57640300520 has 192 divisors, whose sum is σ = 149192260560. Its totient is φ = 20005539840.

The previous prime is 57640300511. The next prime is 57640300547. The reversal of 57640300520 is 2500304675.

It can be written as a sum of positive squares in 8 ways, for example, as 53350836484 + 4289464036 = 230978^2 + 65494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9488204 + ... + 9494276.

Almost surely, 2^57640300520 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 57640300520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74596130280).

57640300520 is an abundant number, since it is smaller than the sum of its proper divisors (91551960040).

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

57640300520 is a wasteful number, since it uses less digits than its factorization.

57640300520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 57640300520 in words is "fifty-seven billion, six hundred forty million, three hundred thousand, five hundred twenty".