563641423 has 2 divisors, whose sum is σ = 563641424. Its totient is φ = 563641422.

The previous prime is 563641417. The next prime is 563641433. The reversal of 563641423 is 324146365.

563641423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 563641423 - 2⁹ = 563640911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563641433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281820711 + 281820712.

It is an arithmetic number, because the mean of its divisors is an integer number (281820712).

Almost surely, 2^563641423 is an apocalyptic number.

563641423 is a deficient number, since it is larger than the sum of its proper divisors (1).

563641423 is an equidigital number, since it uses as much as digits as its factorization.

563641423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 34.

The square root of 563641423 is about 23741.1335660284. The cubic root of 563641423 is about 826.0397898977.

Adding to 563641423 its reverse (324146365), we get a palindrome (887787788).

The spelling of 563641423 in words is "five hundred sixty-three million, six hundred forty-one thousand, four hundred twenty-three".