57047018 has 16 divisors (see below), whose sum is σ = 99136320. Its totient is φ = 24113376.

The previous prime is 57046999. The next prime is 57047051. The reversal of 57047018 is 81074075.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26888 + ... + 28931.

It is an arithmetic number, because the mean of its divisors is an integer number (6196020).

Almost surely, 2^57047018 is an apocalyptic number.

57047018 is a deficient number, since it is larger than the sum of its proper divisors (42089302).

57047018 is a wasteful number, since it uses less digits than its factorization.

57047018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55901.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 57047018 is about 7552.9476365191. The cubic root of 57047018 is about 384.9559020724.

The spelling of 57047018 in words is "fifty-seven million, forty-seven thousand, eighteen".