57490181 has 12 divisors (see below), whose sum is σ = 70397280. Its totient is φ = 46683000.

The previous prime is 57490177. The next prime is 57490189. The reversal of 57490181 is 18109475.

It is not a de Polignac number, because 57490181 - 2² = 57490177 is a prime.

It is a super-2 number, since 2×57490181² = 6610241822825522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57490189) 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, 29945 + ... + 31806.

It is an arithmetic number, because the mean of its divisors is an integer number (5866440).

Almost surely, 2^57490181 is an apocalyptic number.

It is an amenable number.

57490181 is a deficient number, since it is larger than the sum of its proper divisors (12907099).

57490181 is a wasteful number, since it uses less digits than its factorization.

57490181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61784 (or 61777 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 57490181 is about 7582.2279707221. The cubic root of 57490181 is about 385.9501600124.

The spelling of 57490181 in words is "fifty-seven million, four hundred ninety thousand, one hundred eighty-one".