57144893 has 16 divisors (see below), whose sum is σ = 63482496. Its totient is φ = 51105600.

The previous prime is 57144869. The next prime is 57144907. The reversal of 57144893 is 39844175.

It is a de Polignac number, because none of the positive numbers 2^k-57144893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57144893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57144193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84071 + ... + 84747.

It is an arithmetic number, because the mean of its divisors is an integer number (3967656).

Almost surely, 2^57144893 is an apocalyptic number.

It is an amenable number.

57144893 is a deficient number, since it is larger than the sum of its proper divisors (6337603).

57144893 is a wasteful number, since it uses less digits than its factorization.

57144893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884.

The product of its digits is 120960, while the sum is 41.

The square root of 57144893 is about 7559.4241182778. The cubic root of 57144893 is about 385.1759312874.

The spelling of 57144893 in words is "fifty-seven million, one hundred forty-four thousand, eight hundred ninety-three".