57494187 has 12 divisors (see below), whose sum is σ = 87932520. Its totient is φ = 36074688.

The previous prime is 57494179. The next prime is 57494201. The reversal of 57494187 is 78149475.

It is a happy number.

It is not a de Polignac number, because 57494187 - 2³ = 57494179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57494117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187737 + ... + 188042.

It is an arithmetic number, because the mean of its divisors is an integer number (7327710).

Almost surely, 2^57494187 is an apocalyptic number.

57494187 is a deficient number, since it is larger than the sum of its proper divisors (30438333).

57494187 is a wasteful number, since it uses less digits than its factorization.

57494187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375802 (or 375799 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 57494187 is about 7582.4921364944. The cubic root of 57494187 is about 385.9591243283.

The spelling of 57494187 in words is "fifty-seven million, four hundred ninety-four thousand, one hundred eighty-seven".