23125553 has 4 divisors (see below), whose sum is σ = 25227888. Its totient is φ = 21023220.

The previous prime is 23125523. The next prime is 23125579. The reversal of 23125553 is 35552132.

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 23125553 - 2¹⁰ = 23124529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23125513) 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, 1051151 + ... + 1051172.

It is an arithmetic number, because the mean of its divisors is an integer number (6306972).

Almost surely, 2^23125553 is an apocalyptic number.

It is an amenable number.

23125553 is a deficient number, since it is larger than the sum of its proper divisors (2102335).

23125553 is a wasteful number, since it uses less digits than its factorization.

23125553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102334.

The product of its digits is 4500, while the sum is 26.

The square root of 23125553 is about 4808.9035132762. The cubic root of 23125553 is about 284.9032317415.

Adding to 23125553 its reverse (35552132), we get a palindrome (58677685).

The spelling of 23125553 in words is "twenty-three million, one hundred twenty-five thousand, five hundred fifty-three".