25896769 has 4 divisors (see below), whose sum is σ = 26163844. Its totient is φ = 25629696.

The previous prime is 25896751. The next prime is 25896809. The reversal of 25896769 is 96769852.

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 12110400 + 13786369 = 3480^2 + 3713^2 .

It is a cyclic number.

It is not a de Polignac number, because 25896769 - 2⁵ = 25896737 is a prime.

It is a super-2 number, since 2×25896769² = 1341285289278722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25896709) 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 3 ways as a sum of consecutive naturals, for example, 133392 + ... + 133585.

It is an arithmetic number, because the mean of its divisors is an integer number (6540961).

Almost surely, 2^25896769 is an apocalyptic number.

It is an amenable number.

25896769 is a deficient number, since it is larger than the sum of its proper divisors (267075).

25896769 is an equidigital number, since it uses as much as digits as its factorization.

25896769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267074.

The product of its digits is 1632960, while the sum is 52.

The square root of 25896769 is about 5088.8868134397. The cubic root of 25896769 is about 295.8570080284.

The spelling of 25896769 in words is "twenty-five million, eight hundred ninety-six thousand, seven hundred sixty-nine".