57028042 has 4 divisors (see below), whose sum is σ = 85542066. Its totient is φ = 28514020.

The previous prime is 57028039. The next prime is 57028051. The reversal of 57028042 is 24082075.

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., 55815841 + 1212201 = 7471^2 + 1101^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57028042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14257009 + ... + 14257012.

Almost surely, 2^57028042 is an apocalyptic number.

57028042 is a deficient number, since it is larger than the sum of its proper divisors (28514024).

57028042 is a wasteful number, since it uses less digits than its factorization.

57028042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514023.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 57028042 is about 7551.6913337345. The cubic root of 57028042 is about 384.9132136984.

The spelling of 57028042 in words is "fifty-seven million, twenty-eight thousand, forty-two".