23232561 has 8 divisors (see below), whose sum is σ = 33792864. Its totient is φ = 14080320.

The previous prime is 23232551. The next prime is 23232619. The reversal of 23232561 is 16523232.

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

It is not a de Polignac number, because 23232561 - 2⁵ = 23232529 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23232541) 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, 351976 + ... + 352041.

It is an arithmetic number, because the mean of its divisors is an integer number (4224108).

Almost surely, 2^23232561 is an apocalyptic number.

It is an amenable number.

23232561 is a deficient number, since it is larger than the sum of its proper divisors (10560303).

23232561 is a wasteful number, since it uses less digits than its factorization.

23232561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704031.

The product of its digits is 2160, while the sum is 24.

The square root of 23232561 is about 4820.0167012159. The cubic root of 23232561 is about 285.3419963391.

Adding to 23232561 its reverse (16523232), we get a palindrome (39755793).

It can be divided in two parts, 2323 and 2561, that added together give a palindrome (4884).

The spelling of 23232561 in words is "twenty-three million, two hundred thirty-two thousand, five hundred sixty-one".