57260279 has 2 divisors, whose sum is σ = 57260280. Its totient is φ = 57260278.

The previous prime is 57260263. The next prime is 57260303. The reversal of 57260279 is 97206275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57260279 - 2⁴ = 57260263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57260209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28630139 + 28630140.

It is an arithmetic number, because the mean of its divisors is an integer number (28630140).

Almost surely, 2^57260279 is an apocalyptic number.

57260279 is a deficient number, since it is larger than the sum of its proper divisors (1).

57260279 is an equidigital number, since it uses as much as digits as its factorization.

57260279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 57260279 is about 7567.0522001635. The cubic root of 57260279 is about 385.4350038992.

The spelling of 57260279 in words is "fifty-seven million, two hundred sixty thousand, two hundred seventy-nine".