56823563 has 4 divisors (see below), whose sum is σ = 57462120. Its totient is φ = 56185008.

The previous prime is 56823521. The next prime is 56823577. The reversal of 56823563 is 36532865.

It is a happy number.

56823563 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 56823563 - 2¹² = 56819467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56823583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319145 + ... + 319322.

It is an arithmetic number, because the mean of its divisors is an integer number (14365530).

Almost surely, 2^56823563 is an apocalyptic number.

56823563 is a deficient number, since it is larger than the sum of its proper divisors (638557).

56823563 is an equidigital number, since it uses as much as digits as its factorization.

56823563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638556.

The product of its digits is 129600, while the sum is 38.

The square root of 56823563 is about 7538.1405532134. The cubic root of 56823563 is about 384.4526161634.

The spelling of 56823563 in words is "fifty-six million, eight hundred twenty-three thousand, five hundred sixty-three".