23362561 has 4 divisors (see below), whose sum is σ = 24116224. Its totient is φ = 22608900.

The previous prime is 23362531. The next prime is 23362567. The reversal of 23362561 is 16526332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23362561 - 2⁵ = 23362529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23362567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376785 + ... + 376846.

It is an arithmetic number, because the mean of its divisors is an integer number (6029056).

Almost surely, 2^23362561 is an apocalyptic number.

It is an amenable number.

23362561 is a deficient number, since it is larger than the sum of its proper divisors (753663).

23362561 is an equidigital number, since it uses as much as digits as its factorization.

23362561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753662.

The product of its digits is 6480, while the sum is 28.

The square root of 23362561 is about 4833.4833195119. The cubic root of 23362561 is about 285.8732261259.

Adding to 23362561 its reverse (16526332), we get a palindrome (39888893).

The spelling of 23362561 in words is "twenty-three million, three hundred sixty-two thousand, five hundred sixty-one".