57485181 has 12 divisors (see below), whose sum is σ = 82997088. Its totient is φ = 35375184.

The previous prime is 57485173. The next prime is 57485201. The reversal of 57485181 is 18158475.

It is not a de Polignac number, because 57485181 - 2³ = 57485173 is a prime.

It is a super-2 number, since 2×57485181² = 6609092069205522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57485111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56185 + ... + 57198.

It is an arithmetic number, because the mean of its divisors is an integer number (6916424).

Almost surely, 2^57485181 is an apocalyptic number.

It is an amenable number.

57485181 is a deficient number, since it is larger than the sum of its proper divisors (25511907).

57485181 is a wasteful number, since it uses less digits than its factorization.

57485181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113412 (or 113399 counting only the distinct ones).

The product of its digits is 44800, while the sum is 39.

The square root of 57485181 is about 7581.8982451626. The cubic root of 57485181 is about 385.9389708162.

The spelling of 57485181 in words is "fifty-seven million, four hundred eighty-five thousand, one hundred eighty-one".