25425423 has 6 divisors (see below), whose sum is σ = 36725624. Its totient is φ = 16950276.

The previous prime is 25425403. The next prime is 25425451. The reversal of 25425423 is 32452452.

It is a happy number.

It is not a de Polignac number, because 25425423 - 2⁵ = 25425391 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 (25425403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1412515 + ... + 1412532.

Almost surely, 2^25425423 is an apocalyptic number.

25425423 is a deficient number, since it is larger than the sum of its proper divisors (11300201).

25425423 is a wasteful number, since it uses less digits than its factorization.

25425423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825053 (or 2825050 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25425423 is about 5042.3628389873. The cubic root of 25425423 is about 294.0510462524.

Adding to 25425423 its reverse (32452452), we get a palindrome (57877875).

The spelling of 25425423 in words is "twenty-five million, four hundred twenty-five thousand, four hundred twenty-three".