25923997 has 16 divisors (see below), whose sum is σ = 30169152. Its totient is φ = 22014720.

The previous prime is 25923991. The next prime is 25924007. The reversal of 25923997 is 79932952.

It is a cyclic number.

It is not a de Polignac number, because 25923997 - 2⁷ = 25923869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25923991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28918 + ... + 29800.

It is an arithmetic number, because the mean of its divisors is an integer number (1885572).

Almost surely, 2^25923997 is an apocalyptic number.

It is an amenable number.

25923997 is a deficient number, since it is larger than the sum of its proper divisors (4245155).

25923997 is a wasteful number, since it uses less digits than its factorization.

25923997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its digits is 306180, while the sum is 46.

The square root of 25923997 is about 5091.5613518841. The cubic root of 25923997 is about 295.9606602515.

The spelling of 25923997 in words is "twenty-five million, nine hundred twenty-three thousand, nine hundred ninety-seven".