57125138181 has 16 divisors (see below), whose sum is σ = 77274142848. Its totient is φ = 37530259200.

The previous prime is 57125138171. The next prime is 57125138209. The reversal of 57125138181 is 18183152175.

It is not a de Polignac number, because 57125138181 - 2⁶ = 57125138117 is a prime.

It is a super-2 number, since 2×57125138181² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57125138101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427065 + ... + 544641.

It is an arithmetic number, because the mean of its divisors is an integer number (4829633928).

Almost surely, 2^57125138181 is an apocalyptic number.

It is an amenable number.

57125138181 is a deficient number, since it is larger than the sum of its proper divisors (20149004667).

57125138181 is a wasteful number, since it uses less digits than its factorization.

57125138181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119932.

The product of its digits is 67200, while the sum is 42.

The spelling of 57125138181 in words is "fifty-seven billion, one hundred twenty-five million, one hundred thirty-eight thousand, one hundred eighty-one".