556824823 has 4 divisors (see below), whose sum is σ = 558806688. Its totient is φ = 554842960.

The previous prime is 556824799. The next prime is 556824841. The reversal of 556824823 is 328428655.

556824823 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 a de Polignac number, because none of the positive numbers 2^k-556824823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556824823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556824223) 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, 990511 + ... + 991072.

It is an arithmetic number, because the mean of its divisors is an integer number (139701672).

Almost surely, 2^556824823 is an apocalyptic number.

556824823 is a deficient number, since it is larger than the sum of its proper divisors (1981865).

556824823 is a wasteful number, since it uses less digits than its factorization.

556824823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981864.

The product of its digits is 460800, while the sum is 43.

The square root of 556824823 is about 23597.1359067155. The cubic root of 556824823 is about 822.6962718072.

The spelling of 556824823 in words is "five hundred fifty-six million, eight hundred twenty-four thousand, eight hundred twenty-three".