25109223 has 16 divisors (see below), whose sum is σ = 34003200. Its totient is φ = 16479936.

The previous prime is 25109197. The next prime is 25109251. The reversal of 25109223 is 32290152.

It is not a de Polignac number, because 25109223 - 2⁵ = 25109191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25109193 and 25109202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25109263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81636 + ... + 81942.

It is an arithmetic number, because the mean of its divisors is an integer number (2125200).

Almost surely, 2^25109223 is an apocalyptic number.

25109223 is a deficient number, since it is larger than the sum of its proper divisors (8893977).

25109223 is a wasteful number, since it uses less digits than its factorization.

25109223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 25109223 is about 5010.9103963252. The cubic root of 25109223 is about 292.8269818405.

Adding to 25109223 its reverse (32290152), we get a palindrome (57399375).

The spelling of 25109223 in words is "twenty-five million, one hundred nine thousand, two hundred twenty-three".