8556858223 has 2 divisors, whose sum is σ = 8556858224. Its totient is φ = 8556858222.

The previous prime is 8556858187. The next prime is 8556858241. The reversal of 8556858223 is 3228586558.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8556858223 - 2²⁵ = 8523303791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8556858623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4278429111 + 4278429112.

It is an arithmetic number, because the mean of its divisors is an integer number (4278429112).

Almost surely, 2^8556858223 is an apocalyptic number.

8556858223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8556858223 is an equidigital number, since it uses as much as digits as its factorization.

8556858223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608000, while the sum is 52.

The square root of 8556858223 is about 92503.2876334674. The cubic root of 8556858223 is about 2045.3679451439.

The spelling of 8556858223 in words is "eight billion, five hundred fifty-six million, eight hundred fifty-eight thousand, two hundred twenty-three".