25696319 has 12 divisors (see below), whose sum is σ = 28436280. Its totient is φ = 23028000.

The previous prime is 25696301. The next prime is 25696331. The reversal of 25696319 is 91369652.

It is a de Polignac number, because none of the positive numbers 2^k-25696319 is a prime.

It is a super-2 number, since 2×25696319² = 1320601620299522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25696369) 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 11 ways as a sum of consecutive naturals, for example, 112097 + ... + 112325.

It is an arithmetic number, because the mean of its divisors is an integer number (2369690).

Almost surely, 2^25696319 is an apocalyptic number.

25696319 is a deficient number, since it is larger than the sum of its proper divisors (2739961).

25696319 is a wasteful number, since it uses less digits than its factorization.

25696319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 341 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 25696319 is about 5069.1536768972. The cubic root of 25696319 is about 295.0916846112.

It can be divided in two parts, 2569 and 6319, that added together give a palindrome (8888).

The spelling of 25696319 in words is "twenty-five million, six hundred ninety-six thousand, three hundred nineteen".