25635423 has 12 divisors (see below), whose sum is σ = 37570904. Its totient is φ = 15536400.

The previous prime is 25635397. The next prime is 25635437. The reversal of 25635423 is 32453652.

It is not a de Polignac number, because 25635423 - 2²⁰ = 24586847 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 (25635443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34948 + ... + 35673.

Almost surely, 2^25635423 is an apocalyptic number.

25635423 is a deficient number, since it is larger than the sum of its proper divisors (11935481).

25635423 is a wasteful number, since it uses less digits than its factorization.

25635423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70646 (or 70635 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 25635423 is about 5063.1435887204. The cubic root of 25635423 is about 294.8583941650.

The spelling of 25635423 in words is "twenty-five million, six hundred thirty-five thousand, four hundred twenty-three".