57144894 has 16 divisors (see below), whose sum is σ = 120305280. Its totient is φ = 18045720.

The previous prime is 57144869. The next prime is 57144907. The reversal of 57144894 is 49844175.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250522 + ... + 250749.

It is an arithmetic number, because the mean of its divisors is an integer number (7519080).

Almost surely, 2^57144894 is an apocalyptic number.

57144894 is an abundant number, since it is smaller than the sum of its proper divisors (63160386).

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

57144894 is a wasteful number, since it uses less digits than its factorization.

57144894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501295.

The product of its digits is 161280, while the sum is 42.

The square root of 57144894 is about 7559.4241844204. The cubic root of 57144894 is about 385.1759335341.

The spelling of 57144894 in words is "fifty-seven million, one hundred forty-four thousand, eight hundred ninety-four".