25805967 has 8 divisors (see below), whose sum is σ = 37536000. Its totient is φ = 15639960.

The previous prime is 25805963. The next prime is 25805987. The reversal of 25805967 is 76950852.

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

It is not a de Polignac number, because 25805967 - 2² = 25805963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25805963) 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, 390967 + ... + 391032.

It is an arithmetic number, because the mean of its divisors is an integer number (4692000).

Almost surely, 2^25805967 is an apocalyptic number.

25805967 is a deficient number, since it is larger than the sum of its proper divisors (11730033).

25805967 is a wasteful number, since it uses less digits than its factorization.

25805967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782013.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 25805967 is about 5079.9573817110. The cubic root of 25805967 is about 295.5108146786.

The spelling of 25805967 in words is "twenty-five million, eight hundred five thousand, nine hundred sixty-seven".