25025823 has 6 divisors (see below), whose sum is σ = 36148424. Its totient is φ = 16683876.

The previous prime is 25025809. The next prime is 25025827. The reversal of 25025823 is 32852052.

It is not a de Polignac number, because 25025823 - 2²¹ = 22928671 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 (25025827) 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, 1390315 + ... + 1390332.

Almost surely, 2^25025823 is an apocalyptic number.

25025823 is a deficient number, since it is larger than the sum of its proper divisors (11122601).

25025823 is a wasteful number, since it uses less digits than its factorization.

25025823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780653 (or 2780650 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25025823 is about 5002.5816335168. The cubic root of 25025823 is about 292.5024150579.

Adding to 25025823 its reverse (32852052), we get a palindrome (57877875).

The spelling of 25025823 in words is "twenty-five million, twenty-five thousand, eight hundred twenty-three".