57556450320 has 40 divisors (see below), whose sum is σ = 178424996736. Its totient is φ = 15348386688.

The previous prime is 57556450271. The next prime is 57556450327. The reversal of 57556450320 is 2305465575.

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

It is not an unprimeable number, because it can be changed into a prime (57556450327) 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, 119909032 + ... + 119909511.

Almost surely, 2^57556450320 is an apocalyptic number.

It is an amenable number.

57556450320 is an abundant number, since it is smaller than the sum of its proper divisors (120868546416).

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

57556450320 is a wasteful number, since it uses less digits than its factorization.

57556450320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239818559 (or 239818553 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 42.

The spelling of 57556450320 in words is "fifty-seven billion, five hundred fifty-six million, four hundred fifty thousand, three hundred twenty".