57000064 has 32 divisors (see below), whose sum is σ = 123881040. Its totient is φ = 25908480.

The previous prime is 57000059. The next prime is 57000067. The reversal of 57000064 is 46000075.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 56999999 and 57000044.

It is not an unprimeable number, because it can be changed into a prime (57000067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18834 + ... + 21649.

Almost surely, 2^57000064 is an apocalyptic number.

It is an amenable number.

57000064 is an abundant number, since it is smaller than the sum of its proper divisors (66880976).

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

57000064 is a wasteful number, since it uses less digits than its factorization.

57000064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40508 (or 40496 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 57000064 is about 7549.8386737731. The cubic root of 57000064 is about 384.8502571651.

The spelling of 57000064 in words is "fifty-seven million, sixty-four", and thus it is an aban number.