556222399 has 2 divisors, whose sum is σ = 556222400. Its totient is φ = 556222398.

The previous prime is 556222379. The next prime is 556222427. The reversal of 556222399 is 993222655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556222399 - 2²³ = 547833791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556222319) 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, 278111199 + 278111200.

It is an arithmetic number, because the mean of its divisors is an integer number (278111200).

Almost surely, 2^556222399 is an apocalyptic number.

556222399 is a deficient number, since it is larger than the sum of its proper divisors (1).

556222399 is an equidigital number, since it uses as much as digits as its factorization.

556222399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 556222399 is about 23584.3676828530. The cubic root of 556222399 is about 822.3994754010.

The spelling of 556222399 in words is "five hundred fifty-six million, two hundred twenty-two thousand, three hundred ninety-nine".