556552823 has 2 divisors, whose sum is σ = 556552824. Its totient is φ = 556552822.

The previous prime is 556552813. The next prime is 556552831. The reversal of 556552823 is 328255655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556552823 - 2⁸ = 556552567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556552813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278276411 + 278276412.

It is an arithmetic number, because the mean of its divisors is an integer number (278276412).

Almost surely, 2^556552823 is an apocalyptic number.

556552823 is a deficient number, since it is larger than the sum of its proper divisors (1).

556552823 is an equidigital number, since it uses as much as digits as its factorization.

556552823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360000, while the sum is 41.

The square root of 556552823 is about 23591.3717913987. The cubic root of 556552823 is about 822.5622920089.

The spelling of 556552823 in words is "five hundred fifty-six million, five hundred fifty-two thousand, eight hundred twenty-three".