25385823 has 12 divisors (see below), whose sum is σ = 37171680. Its totient is φ = 16691616.

The previous prime is 25385819. The next prime is 25385839. The reversal of 25385823 is 32858352.

It is not a de Polignac number, because 25385823 - 2² = 25385819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25385923) 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, 18663 + ... + 19976.

It is an arithmetic number, because the mean of its divisors is an integer number (3097640).

Almost surely, 2^25385823 is an apocalyptic number.

25385823 is a deficient number, since it is larger than the sum of its proper divisors (11785857).

25385823 is a wasteful number, since it uses less digits than its factorization.

25385823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38718 (or 38715 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 25385823 is about 5038.4345783189. The cubic root of 25385823 is about 293.8983057972.

The spelling of 25385823 in words is "twenty-five million, three hundred eighty-five thousand, eight hundred twenty-three".