556913563 has 4 divisors (see below), whose sum is σ = 564757488. Its totient is φ = 549069640.

The previous prime is 556913551. The next prime is 556913629. The reversal of 556913563 is 365319655.

556913563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556913563 - 2¹⁷ = 556782491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556913363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3921856 + ... + 3921997.

It is an arithmetic number, because the mean of its divisors is an integer number (141189372).

Almost surely, 2^556913563 is an apocalyptic number.

556913563 is a deficient number, since it is larger than the sum of its proper divisors (7843925).

556913563 is an equidigital number, since it uses as much as digits as its factorization.

556913563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843924.

The product of its digits is 364500, while the sum is 43.

The square root of 556913563 is about 23599.0161447464. The cubic root of 556913563 is about 822.7399732768.

The spelling of 556913563 in words is "five hundred fifty-six million, nine hundred thirteen thousand, five hundred sixty-three".