25326865 has 4 divisors (see below), whose sum is σ = 30392244. Its totient is φ = 20261488.

The previous prime is 25326863. The next prime is 25326877. The reversal of 25326865 is 56862352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18378369 + 6948496 = 4287^2 + 2636^2 .

It is a cyclic number.

It is not a de Polignac number, because 25326865 - 2¹ = 25326863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25326863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532682 + ... + 2532691.

It is an arithmetic number, because the mean of its divisors is an integer number (7598061).

Almost surely, 2^25326865 is an apocalyptic number.

It is an amenable number.

25326865 is a deficient number, since it is larger than the sum of its proper divisors (5065379).

25326865 is an equidigital number, since it uses as much as digits as its factorization.

25326865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065378.

The product of its digits is 86400, while the sum is 37.

The square root of 25326865 is about 5032.5803520659. The cubic root of 25326865 is about 293.6706053728.

The spelling of 25326865 in words is "twenty-five million, three hundred twenty-six thousand, eight hundred sixty-five".