23265543 has 12 divisors (see below), whose sum is σ = 36085560. Its totient is φ = 13294512.

The previous prime is 23265533. The next prime is 23265553. The reversal of 23265543 is 34556232.

It is an interprime number because it is at equal distance from previous prime (23265533) and next prime (23265553).

It is not a de Polignac number, because 23265543 - 2¹⁸ = 23003399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23265543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23265533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78988 + ... + 79281.

It is an arithmetic number, because the mean of its divisors is an integer number (3007130).

Almost surely, 2^23265543 is an apocalyptic number.

23265543 is a deficient number, since it is larger than the sum of its proper divisors (12820017).

23265543 is a wasteful number, since it uses less digits than its factorization.

23265543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158286 (or 158279 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 23265543 is about 4823.4368452381. The cubic root of 23265543 is about 285.4769606496.

The spelling of 23265543 in words is "twenty-three million, two hundred sixty-five thousand, five hundred forty-three".