57391774 has 16 divisors (see below), whose sum is σ = 94204656. Its totient is φ = 26006400.

The previous prime is 57391771. The next prime is 57391801. The reversal of 57391774 is 47719375.

It is a self number, because there is not a number n which added to its sum of digits gives 57391774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57391771) 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 7 ways as a sum of consecutive naturals, for example, 3544 + ... + 11284.

It is an arithmetic number, because the mean of its divisors is an integer number (5887791).

Almost surely, 2^57391774 is an apocalyptic number.

57391774 is a deficient number, since it is larger than the sum of its proper divisors (36812882).

57391774 is a wasteful number, since it uses less digits than its factorization.

57391774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8091.

The product of its digits is 185220, while the sum is 43.

The square root of 57391774 is about 7575.7358718477. The cubic root of 57391774 is about 385.7298215834.

The spelling of 57391774 in words is "fifty-seven million, three hundred ninety-one thousand, seven hundred seventy-four".