57039018 has 16 divisors (see below), whose sum is σ = 114152160. Its totient is φ = 19000656.

The previous prime is 57039013. The next prime is 57039019. The reversal of 57039018 is 81093075.

57039018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57039018.

It is not an unprimeable number, because it can be changed into a prime (57039013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15873 + ... + 19131.

It is an arithmetic number, because the mean of its divisors is an integer number (7134510).

Almost surely, 2^57039018 is an apocalyptic number.

57039018 is an abundant number, since it is smaller than the sum of its proper divisors (57113142).

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

57039018 is a wasteful number, since it uses less digits than its factorization.

57039018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 57039018 is about 7552.4180233883. The cubic root of 57039018 is about 384.9379064418.

The spelling of 57039018 in words is "fifty-seven million, thirty-nine thousand, eighteen".