556420020479 has 2 divisors, whose sum is σ = 556420020480. Its totient is φ = 556420020478.

The previous prime is 556420020367. The next prime is 556420020517. The reversal of 556420020479 is 974020024655.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556420020479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556420026479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278210010239 + 278210010240.

It is an arithmetic number, because the mean of its divisors is an integer number (278210010240).

Almost surely, 2^556420020479 is an apocalyptic number.

556420020479 is a deficient number, since it is larger than the sum of its proper divisors (1).

556420020479 is an equidigital number, since it uses as much as digits as its factorization.

556420020479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 556420020479 in words is "five hundred fifty-six billion, four hundred twenty million, twenty thousand, four hundred seventy-nine".