23022563 has 4 divisors (see below), whose sum is σ = 24023568. Its totient is φ = 22021560.

The previous prime is 23022557. The next prime is 23022569. The reversal of 23022563 is 36522032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23022557) and next prime (23022569).

It is a cyclic number.

It is not a de Polignac number, because 23022563 - 2¹⁰ = 23021539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1000981 = 23022563 / (2 + 3 + 0 + 2 + 2 + 5 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23022569) 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, 500468 + ... + 500513.

It is an arithmetic number, because the mean of its divisors is an integer number (6005892).

Almost surely, 2^23022563 is an apocalyptic number.

23022563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23022563 is a deficient number, since it is larger than the sum of its proper divisors (1001005).

23022563 is a wasteful number, since it uses less digits than its factorization.

23022563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001004.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 23022563 is about 4798.1833020426. The cubic root of 23022563 is about 284.4796620428.

Adding to 23022563 its reverse (36522032), we get a palindrome (59544595).

The spelling of 23022563 in words is "twenty-three million, twenty-two thousand, five hundred sixty-three".