23113553 has 4 divisors (see below), whose sum is σ = 23439168. Its totient is φ = 22787940.

The previous prime is 23113549. The next prime is 23113561. The reversal of 23113553 is 35531132.

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 23113553 - 2² = 23113549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23113513) 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, 162701 + ... + 162842.

It is an arithmetic number, because the mean of its divisors is an integer number (5859792).

Almost surely, 2^23113553 is an apocalyptic number.

It is an amenable number.

23113553 is a deficient number, since it is larger than the sum of its proper divisors (325615).

23113553 is an equidigital number, since it uses as much as digits as its factorization.

23113553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325614.

The product of its digits is 1350, while the sum is 23.

The square root of 23113553 is about 4807.6556657065. The cubic root of 23113553 is about 284.8539438347.

Adding to 23113553 its reverse (35531132), we get a palindrome (58644685).

The spelling of 23113553 in words is "twenty-three million, one hundred thirteen thousand, five hundred fifty-three".