563023 has 4 divisors (see below), whose sum is σ = 596160. Its totient is φ = 529888.

The previous prime is 563021. The next prime is 563039. The reversal of 563023 is 320365.

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 563023 - 2¹ = 563021 is a prime.

It is a Duffinian number.

563023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563021) 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 3 ways as a sum of consecutive naturals, for example, 16543 + ... + 16576.

It is an arithmetic number, because the mean of its divisors is an integer number (149040).

2⁵⁶³⁰²³ is an apocalyptic number.

563023 is a deficient number, since it is larger than the sum of its proper divisors (33137).

563023 is a wasteful number, since it uses less digits than its factorization.

563023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33136.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 563023 is about 750.3485856587. The cubic root of 563023 is about 82.5737571189.

Adding to 563023 its reverse (320365), we get a palindrome (883388).

The spelling of 563023 in words is "five hundred sixty-three thousand, twenty-three".