57289613 has 2 divisors, whose sum is σ = 57289614. Its totient is φ = 57289612.

The previous prime is 57289607. The next prime is 57289633. The reversal of 57289613 is 31698275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53553124 + 3736489 = 7318^2 + 1933^2 .

It is a cyclic number.

It is not a de Polignac number, because 57289613 - 2⁶ = 57289549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57289633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28644806 + 28644807.

It is an arithmetic number, because the mean of its divisors is an integer number (28644807).

Almost surely, 2^57289613 is an apocalyptic number.

It is an amenable number.

57289613 is a deficient number, since it is larger than the sum of its proper divisors (1).

57289613 is an equidigital number, since it uses as much as digits as its factorization.

57289613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 57289613 is about 7568.9902232729. The cubic root of 57289613 is about 385.5008111245.

The spelling of 57289613 in words is "fifty-seven million, two hundred eighty-nine thousand, six hundred thirteen".