57581121 has 24 divisors (see below), whose sum is σ = 86462656. Its totient is φ = 33881760.

The previous prime is 57581089. The next prime is 57581123. The reversal of 57581121 is 12118575.

It is not a de Polignac number, because 57581121 - 2⁵ = 57581089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57581123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19236 + ... + 22026.

Almost surely, 2^57581121 is an apocalyptic number.

It is an amenable number.

57581121 is a deficient number, since it is larger than the sum of its proper divisors (28881535).

57581121 is a wasteful number, since it uses less digits than its factorization.

57581121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853 (or 2830 counting only the distinct ones).

The product of its digits is 2800, while the sum is 30.

The square root of 57581121 is about 7588.2225191411. Note that the first 3 decimals coincide. The cubic root of 57581121 is about 386.1535560046.

Adding to 57581121 its reverse (12118575), we get a palindrome (69699696).

The spelling of 57581121 in words is "fifty-seven million, five hundred eighty-one thousand, one hundred twenty-one".