57385733520 has 40 divisors (see below), whose sum is σ = 177895774656. Its totient is φ = 15302862208.

The previous prime is 57385733507. The next prime is 57385733521. The reversal of 57385733520 is 2533758375.

57385733520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 57385733520.

It is not an unprimeable number, because it can be changed into a prime (57385733521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119553372 + ... + 119553851.

Almost surely, 2^57385733520 is an apocalyptic number.

It is an amenable number.

57385733520 is an abundant number, since it is smaller than the sum of its proper divisors (120510041136).

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

57385733520 is a wasteful number, since it uses less digits than its factorization.

57385733520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239107239 (or 239107233 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 48.

The spelling of 57385733520 in words is "fifty-seven billion, three hundred eighty-five million, seven hundred thirty-three thousand, five hundred twenty".