557825717 has 2 divisors, whose sum is σ = 557825718. Its totient is φ = 557825716.

The previous prime is 557825711. The next prime is 557825767. The reversal of 557825717 is 717528755.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310675876 + 247149841 = 17626^2 + 15721^2 .

It is a cyclic number.

It is not a de Polignac number, because 557825717 - 2²⁰ = 556777141 is a prime.

It is a super-2 number, since 2×557825717² = 622339061093128178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557825711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278912858 + 278912859.

It is an arithmetic number, because the mean of its divisors is an integer number (278912859).

Almost surely, 2^557825717 is an apocalyptic number.

It is an amenable number.

557825717 is a deficient number, since it is larger than the sum of its proper divisors (1).

557825717 is an equidigital number, since it uses as much as digits as its factorization.

557825717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 686000, while the sum is 47.

The square root of 557825717 is about 23618.3343400842. The cubic root of 557825717 is about 823.1889096153.

The spelling of 557825717 in words is "five hundred fifty-seven million, eight hundred twenty-five thousand, seven hundred seventeen".