25456823 has 6 divisors (see below), whose sum is σ = 29613096. Its totient is φ = 21820092.

The previous prime is 25456811. The next prime is 25456829. The reversal of 25456823 is 32865452.

It is not a de Polignac number, because 25456823 - 2⁴ = 25456807 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 (25456829) 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, 259715 + ... + 259812.

It is an arithmetic number, because the mean of its divisors is an integer number (4935516).

Almost surely, 2^25456823 is an apocalyptic number.

25456823 is a deficient number, since it is larger than the sum of its proper divisors (4156273).

25456823 is an equidigital number, since it uses as much as digits as its factorization.

25456823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519541 (or 519534 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 25456823 is about 5045.4754979090. The cubic root of 25456823 is about 294.1720459372.

The spelling of 25456823 in words is "twenty-five million, four hundred fifty-six thousand, eight hundred twenty-three".