556242223 has 2 divisors, whose sum is σ = 556242224. Its totient is φ = 556242222.

The previous prime is 556242199. The next prime is 556242251. The reversal of 556242223 is 322242655.

556242223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556242223 - 2⁵ = 556242191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556242263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278121111 + 278121112.

It is an arithmetic number, because the mean of its divisors is an integer number (278121112).

Almost surely, 2^556242223 is an apocalyptic number.

556242223 is a deficient number, since it is larger than the sum of its proper divisors (1).

556242223 is an equidigital number, since it uses as much as digits as its factorization.

556242223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 556242223 is about 23584.7879574950. The cubic root of 556242223 is about 822.4092455059.

Adding to 556242223 its reverse (322242655), we get a palindrome (878484878).

The spelling of 556242223 in words is "five hundred fifty-six million, two hundred forty-two thousand, two hundred twenty-three".