57112394 has 8 divisors (see below), whose sum is σ = 85751940. Its totient is φ = 28528416.

The previous prime is 57112387. The next prime is 57112399. The reversal of 57112394 is 49321175.

It can be written as a sum of positive squares in 2 ways, for example, as 52027369 + 5085025 = 7213^2 + 2255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×57112394² = 6523651096822472, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 57112394.

It is not an unprimeable number, because it can be changed into a prime (57112399) 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, 11219 + ... + 15494.

Almost surely, 2^57112394 is an apocalyptic number.

57112394 is a deficient number, since it is larger than the sum of its proper divisors (28639546).

57112394 is a wasteful number, since it uses less digits than its factorization.

57112394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27784.

The product of its digits is 7560, while the sum is 32.

The square root of 57112394 is about 7557.2742440645. The cubic root of 57112394 is about 385.1028993522.

The spelling of 57112394 in words is "fifty-seven million, one hundred twelve thousand, three hundred ninety-four".