57349919 has 4 divisors (see below), whose sum is σ = 62563560. Its totient is φ = 52136280.

The previous prime is 57349861. The next prime is 57349927. The reversal of 57349919 is 91994375.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57349919 - 2¹² = 57345823 is a prime.

It is a super-2 number, since 2×57349919² = 6578026418613122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57349949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2606804 + ... + 2606825.

It is an arithmetic number, because the mean of its divisors is an integer number (15640890).

Almost surely, 2^57349919 is an apocalyptic number.

57349919 is a deficient number, since it is larger than the sum of its proper divisors (5213641).

57349919 is a wasteful number, since it uses less digits than its factorization.

57349919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213640.

The product of its digits is 306180, while the sum is 47.

The square root of 57349919 is about 7572.9729300982. The cubic root of 57349919 is about 385.6360296985.

The spelling of 57349919 in words is "fifty-seven million, three hundred forty-nine thousand, nine hundred nineteen".