23000566 has 4 divisors (see below), whose sum is σ = 34500852. Its totient is φ = 11500282.

The previous prime is 23000563. The next prime is 23000573. The reversal of 23000566 is 66500032.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750140 + ... + 5750143.

It is an arithmetic number, because the mean of its divisors is an integer number (8625213).

Almost surely, 2^23000566 is an apocalyptic number.

23000566 is a deficient number, since it is larger than the sum of its proper divisors (11500286).

23000566 is a wasteful number, since it uses less digits than its factorization.

23000566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500285.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 23000566 is about 4795.8905325289. The cubic root of 23000566 is about 284.3890307613.

Adding to 23000566 its reverse (66500032), we get a palindrome (89500598).

The spelling of 23000566 in words is "twenty-three million, five hundred sixty-six", and thus it is an aban number.