23045565 has 16 divisors (see below), whose sum is σ = 37025856. Its totient is φ = 12240000.

The previous prime is 23045497. The next prime is 23045573. The reversal of 23045565 is 56554032.

It is not a de Polignac number, because 23045565 - 2⁷ = 23045437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (2314116).

Almost surely, 2^23045565 is an apocalyptic number.

It is an amenable number.

23045565 is a deficient number, since it is larger than the sum of its proper divisors (13980291).

23045565 is a wasteful number, since it uses less digits than its factorization.

23045565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 23045565 is about 4800.5796525003. The cubic root of 23045565 is about 284.5743723659.

Adding to 23045565 its reverse (56554032), we get a palindrome (79599597).

The spelling of 23045565 in words is "twenty-three million, forty-five thousand, five hundred sixty-five".