57058681 has 4 divisors (see below), whose sum is σ = 60415092. Its totient is φ = 53702272.

The previous prime is 57058669. The next prime is 57058709. The reversal of 57058681 is 18685075.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53509225 + 3549456 = 7315^2 + 1884^2 .

It is a cyclic number.

It is not a de Polignac number, because 57058681 - 2⁵ = 57058649 is a prime.

It is a super-2 number, since 2×57058681² = 6511386154919522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57053681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678180 + ... + 1678213.

It is an arithmetic number, because the mean of its divisors is an integer number (15103773).

Almost surely, 2^57058681 is an apocalyptic number.

It is an amenable number.

57058681 is a deficient number, since it is larger than the sum of its proper divisors (3356411).

57058681 is a wasteful number, since it uses less digits than its factorization.

57058681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356410.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 57058681 is about 7553.7196797340. The cubic root of 57058681 is about 384.9821344383.

The spelling of 57058681 in words is "fifty-seven million, fifty-eight thousand, six hundred eighty-one".