57191412 has 24 divisors (see below), whose sum is σ = 135276736. Its totient is φ = 18802368.

The previous prime is 57191389. The next prime is 57191413. The reversal of 57191412 is 21419175.

It is a self number, because there is not a number n which added to its sum of digits gives 57191412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57191413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31768 + ... + 33519.

Almost surely, 2^57191412 is an apocalyptic number.

It is an amenable number.

57191412 is an abundant number, since it is smaller than the sum of its proper divisors (78085324).

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

57191412 is a wasteful number, since it uses less digits than its factorization.

57191412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65367 (or 65365 counting only the distinct ones).

The product of its digits is 2520, while the sum is 30.

The square root of 57191412 is about 7562.5003801653. The cubic root of 57191412 is about 385.2804208771.

The spelling of 57191412 in words is "fifty-seven million, one hundred ninety-one thousand, four hundred twelve".