6556039423 has 2 divisors, whose sum is σ = 6556039424. Its totient is φ = 6556039422.

The previous prime is 6556039351. The next prime is 6556039487. The reversal of 6556039423 is 3249306556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6556039423 - 2¹⁷ = 6555908351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6556039423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6556039723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278019711 + 3278019712.

It is an arithmetic number, because the mean of its divisors is an integer number (3278019712).

Almost surely, 2^6556039423 is an apocalyptic number.

6556039423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6556039423 is an equidigital number, since it uses as much as digits as its factorization.

6556039423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 43.

The square root of 6556039423 is about 80969.3733642542. The cubic root of 6556039423 is about 1871.6035149330.

The spelling of 6556039423 in words is "six billion, five hundred fifty-six million, thirty-nine thousand, four hundred twenty-three".