25760889 has 32 divisors (see below), whose sum is σ = 47585280. Its totient is φ = 13381200.

The previous prime is 25760887. The next prime is 25760927. The reversal of 25760889 is 98806752.

It is not a de Polignac number, because 25760889 - 2¹ = 25760887 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25760887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4117 + ... + 8274.

It is an arithmetic number, because the mean of its divisors is an integer number (1487040).

Almost surely, 2^25760889 is an apocalyptic number.

It is an amenable number.

25760889 is a deficient number, since it is larger than the sum of its proper divisors (21824391).

25760889 is a wasteful number, since it uses less digits than its factorization.

25760889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12418 (or 12412 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 25760889 is about 5075.5185941931. The cubic root of 25760889 is about 295.3386477729.

The spelling of 25760889 in words is "twenty-five million, seven hundred sixty thousand, eight hundred eighty-nine".