25423223 has 4 divisors (see below), whose sum is σ = 29055120. Its totient is φ = 21791328.

The previous prime is 25423207. The next prime is 25423243. The reversal of 25423223 is 32232452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25423223 - 2⁴ = 25423207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25423243) 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, 1815938 + ... + 1815951.

It is an arithmetic number, because the mean of its divisors is an integer number (7263780).

Almost surely, 2^25423223 is an apocalyptic number.

25423223 is a deficient number, since it is larger than the sum of its proper divisors (3631897).

25423223 is an equidigital number, since it uses as much as digits as its factorization.

25423223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631896.

The product of its digits is 2880, while the sum is 23.

The square root of 25423223 is about 5042.1446825731. The cubic root of 25423223 is about 294.0425648339.

Adding to 25423223 its reverse (32232452), we get a palindrome (57655675).

The spelling of 25423223 in words is "twenty-five million, four hundred twenty-three thousand, two hundred twenty-three".