556494163 has 4 divisors (see below), whose sum is σ = 556839088. Its totient is φ = 556149240.

The previous prime is 556494149. The next prime is 556494181. The reversal of 556494163 is 361494655.

556494163 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 556494163 - 2²⁵ = 522939731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556491163) 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, 170031 + ... + 173272.

It is an arithmetic number, because the mean of its divisors is an integer number (139209772).

Almost surely, 2^556494163 is an apocalyptic number.

556494163 is a deficient number, since it is larger than the sum of its proper divisors (344925).

556494163 is a wasteful number, since it uses less digits than its factorization.

556494163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344924.

The product of its digits is 388800, while the sum is 43.

The square root of 556494163 is about 23590.1285074923. The cubic root of 556494163 is about 822.5333919673.

The spelling of 556494163 in words is "five hundred fifty-six million, four hundred ninety-four thousand, one hundred sixty-three".