57148018 has 4 divisors (see below), whose sum is σ = 85722030. Its totient is φ = 28574008.

The previous prime is 57147983. The next prime is 57148019. The reversal of 57148018 is 81084175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53333809 + 3814209 = 7303^2 + 1953^2 .

It is a super-2 number, since 2×57148018² = 6531791922656648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57148019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14287003 + ... + 14287006.

Almost surely, 2^57148018 is an apocalyptic number.

57148018 is a deficient number, since it is larger than the sum of its proper divisors (28574012).

57148018 is a wasteful number, since it uses less digits than its factorization.

57148018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28574011.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 57148018 is about 7559.6308110912. The cubic root of 57148018 is about 385.1829523455.

The spelling of 57148018 in words is "fifty-seven million, one hundred forty-eight thousand, eighteen".