556763823 has 36 divisors (see below), whose sum is σ = 1020570408. Its totient is φ = 289225440.

The previous prime is 556763819. The next prime is 556763839. The reversal of 556763823 is 328367655.

556763823 is a `hidden beast` number, since 5 + 5 + 6 + 7 + 638 + 2 + 3 = 666.

It is not a de Polignac number, because 556763823 - 2² = 556763819 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556763803) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52536 + ... + 62237.

It is an arithmetic number, because the mean of its divisors is an integer number (28349178).

Almost surely, 2^556763823 is an apocalyptic number.

556763823 is a deficient number, since it is larger than the sum of its proper divisors (463806585).

556763823 is a wasteful number, since it uses less digits than its factorization.

556763823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114804 (or 114794 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 556763823 is about 23595.8433415718. The cubic root of 556763823 is about 822.6662286631. Note that the first 3 decimals are identical.

The spelling of 556763823 in words is "five hundred fifty-six million, seven hundred sixty-three thousand, eight hundred twenty-three".