57015018 has 12 divisors (see below), whose sum is σ = 123532578. Its totient is φ = 19005000.

The previous prime is 57015017. The next prime is 57015019. The reversal of 57015018 is 81051075.

It is an interprime number because it is at equal distance from previous prime (57015017) and next prime (57015019).

It can be written as a sum of positive squares in only one way, i.e., 44715969 + 12299049 = 6687^2 + 3507^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57014982 and 57015000.

It is not an unprimeable number, because it can be changed into a prime (57015017) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1583733 + ... + 1583768.

Almost surely, 2^57015018 is an apocalyptic number.

57015018 is an abundant number, since it is smaller than the sum of its proper divisors (66517560).

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

57015018 is a wasteful number, since it uses less digits than its factorization.

57015018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167509 (or 3167506 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 57015018 is about 7550.8289611141. The cubic root of 57015018 is about 384.8839094521.

The spelling of 57015018 in words is "fifty-seven million, fifteen thousand, eighteen".