25967969 has 4 divisors (see below), whose sum is σ = 26669844. Its totient is φ = 25266096.

The previous prime is 25967947. The next prime is 25967983. The reversal of 25967969 is 96976952.

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 14326225 + 11641744 = 3785^2 + 3412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25967969 is a prime.

It is a super-3 number, since 3×25967969³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25967969.

It is not an unprimeable number, because it can be changed into a prime (25967269) 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, 350882 + ... + 350955.

It is an arithmetic number, because the mean of its divisors is an integer number (6667461).

Almost surely, 2^25967969 is an apocalyptic number.

It is an amenable number.

25967969 is a deficient number, since it is larger than the sum of its proper divisors (701875).

25967969 is an equidigital number, since it uses as much as digits as its factorization.

25967969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701874.

The product of its digits is 1837080, while the sum is 53.

The square root of 25967969 is about 5095.8776476678. The cubic root of 25967969 is about 296.1279008075.

The spelling of 25967969 in words is "twenty-five million, nine hundred sixty-seven thousand, nine hundred sixty-nine".