23265561 has 8 divisors (see below), whose sum is σ = 33840864. Its totient is φ = 14100320.

The previous prime is 23265553. The next prime is 23265577. The reversal of 23265561 is 16556232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23265561 - 2³ = 23265553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23265521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352476 + ... + 352541.

It is an arithmetic number, because the mean of its divisors is an integer number (4230108).

Almost surely, 2^23265561 is an apocalyptic number.

It is an amenable number.

23265561 is a deficient number, since it is larger than the sum of its proper divisors (10575303).

23265561 is a wasteful number, since it uses less digits than its factorization.

23265561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705031.

The product of its digits is 10800, while the sum is 30.

The square root of 23265561 is about 4823.4387111272. The cubic root of 23265561 is about 285.4770342719.

It can be divided in two parts, 2326 and 5561, that added together give a palindrome (7887).

The spelling of 23265561 in words is "twenty-three million, two hundred sixty-five thousand, five hundred sixty-one".