57000561000 has 64 divisors (see below), whose sum is σ = 177841759680. Its totient is φ = 15200148800.

The previous prime is 57000560933. The next prime is 57000561017. The reversal of 57000561000 is 16500075.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9497094 + ... + 9503093.

It is an arithmetic number, because the mean of its divisors is an integer number (2778777495).

Almost surely, 2^57000561000 is an apocalyptic number.

57000561000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57000561000 is an abundant number, since it is smaller than the sum of its proper divisors (120841198680).

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

57000561000 is a wasteful number, since it uses less digits than its factorization.

57000561000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19000211 (or 19000197 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The spelling of 57000561000 in words is "fifty-seven billion, five hundred sixty-one thousand".