25969469 has 8 divisors (see below), whose sum is σ = 26503512. Its totient is φ = 25439040.

The previous prime is 25969451. The next prime is 25969487. The reversal of 25969469 is 96496952.

It is an interprime number because it is at equal distance from previous prime (25969451) and next prime (25969487).

It can be written as a sum of positive squares in 4 ways, for example, as 10272025 + 15697444 = 3205^2 + 3962^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25969469 is a prime.

It is a super-2 number, since 2×25969469² = 1348826640283922, 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 (25969429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17147 + ... + 18599.

It is an arithmetic number, because the mean of its divisors is an integer number (3312939).

Almost surely, 2^25969469 is an apocalyptic number.

It is an amenable number.

25969469 is a deficient number, since it is larger than the sum of its proper divisors (534043).

25969469 is a wasteful number, since it uses less digits than its factorization.

25969469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its digits is 1049760, while the sum is 50.

The square root of 25969469 is about 5096.0248233304. The cubic root of 25969469 is about 296.1336024895.

The spelling of 25969469 in words is "twenty-five million, nine hundred sixty-nine thousand, four hundred sixty-nine".