556712557 has 2 divisors, whose sum is σ = 556712558. Its totient is φ = 556712556.

The previous prime is 556712503. The next prime is 556712593. The reversal of 556712557 is 755217655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556676836 + 35721 = 23594^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 556712557 - 2¹⁵ = 556679789 is a prime.

It is a super-2 number, since 2×556712557² = 619857742242956498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556718557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278356278 + 278356279.

It is an arithmetic number, because the mean of its divisors is an integer number (278356279).

Almost surely, 2^556712557 is an apocalyptic number.

It is an amenable number.

556712557 is a deficient number, since it is larger than the sum of its proper divisors (1).

556712557 is an equidigital number, since it uses as much as digits as its factorization.

556712557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367500, while the sum is 43.

The square root of 556712557 is about 23594.7569811600. The cubic root of 556712557 is about 822.6409779196.

The spelling of 556712557 in words is "five hundred fifty-six million, seven hundred twelve thousand, five hundred fifty-seven".