556139163 has 8 divisors (see below), whose sum is σ = 765438976. Its totient is φ = 358799400.

The previous prime is 556139159. The next prime is 556139189. The reversal of 556139163 is 361931655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556139163 - 2² = 556139159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556139113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989903 + ... + 2990088.

It is an arithmetic number, because the mean of its divisors is an integer number (95679872).

Almost surely, 2^556139163 is an apocalyptic number.

556139163 is a deficient number, since it is larger than the sum of its proper divisors (209299813).

556139163 is a wasteful number, since it uses less digits than its factorization.

556139163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980025.

The product of its digits is 72900, while the sum is 39.

The square root of 556139163 is about 23582.6029733785. The cubic root of 556139163 is about 822.3584506492.

The spelling of 556139163 in words is "five hundred fifty-six million, one hundred thirty-nine thousand, one hundred sixty-three".