57137394 has 8 divisors (see below), whose sum is σ = 114274800. Its totient is φ = 19045796.

The previous prime is 57137393. The next prime is 57137401. The reversal of 57137394 is 49373175.

It is a happy number.

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

57137394 is an admirable number.

It is a super-2 number, since 2×57137394² = 6529363586222472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57137393) 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, 4761444 + ... + 4761455.

It is an arithmetic number, because the mean of its divisors is an integer number (14284350).

Almost surely, 2^57137394 is an apocalyptic number.

57137394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57137394 is a wasteful number, since it uses less digits than its factorization.

57137394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9522904.

The product of its digits is 79380, while the sum is 39.

The square root of 57137394 is about 7558.9280986129. The cubic root of 57137394 is about 385.1590819504.

The spelling of 57137394 in words is "fifty-seven million, one hundred thirty-seven thousand, three hundred ninety-four".