57565489 has 2 divisors, whose sum is σ = 57565490. Its totient is φ = 57565488.

The previous prime is 57565471. The next prime is 57565511. The reversal of 57565489 is 98456575.

57565489 is nontrivially palindromic in base 3.

57565489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43125489 + 14440000 = 6567^2 + 3800^2 .

It is a cyclic number.

It is not a de Polignac number, because 57565489 - 2⁹ = 57564977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57565429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28782744 + 28782745.

It is an arithmetic number, because the mean of its divisors is an integer number (28782745).

Almost surely, 2^57565489 is an apocalyptic number.

It is an amenable number.

57565489 is a deficient number, since it is larger than the sum of its proper divisors (1).

57565489 is an equidigital number, since it uses as much as digits as its factorization.

57565489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 49.

The square root of 57565489 is about 7587.1924319869. The cubic root of 57565489 is about 386.1186087938.

The spelling of 57565489 in words is "fifty-seven million, five hundred sixty-five thousand, four hundred eighty-nine".