556222669 has 2 divisors, whose sum is σ = 556222670. Its totient is φ = 556222668.

The previous prime is 556222637. The next prime is 556222679. The reversal of 556222669 is 966222655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543356100 + 12866569 = 23310^2 + 3587^2 .

It is a cyclic number.

It is not a de Polignac number, because 556222669 - 2⁵ = 556222637 is a prime.

It is a super-3 number, since 3×556222669³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556222679) 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, 278111334 + 278111335.

It is an arithmetic number, because the mean of its divisors is an integer number (278111335).

Almost surely, 2^556222669 is an apocalyptic number.

It is an amenable number.

556222669 is a deficient number, since it is larger than the sum of its proper divisors (1).

556222669 is an equidigital number, since it uses as much as digits as its factorization.

556222669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 556222669 is about 23584.3734069829. The cubic root of 556222669 is about 822.3996084699.

The spelling of 556222669 in words is "five hundred fifty-six million, two hundred twenty-two thousand, six hundred sixty-nine".