25878965 has 8 divisors (see below), whose sum is σ = 35491200. Its totient is φ = 17745552.

The previous prime is 25878959. The next prime is 25878971. The reversal of 25878965 is 56987852.

It is an interprime number because it is at equal distance from previous prime (25878959) and next prime (25878971).

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

It is a cyclic number.

It is not a de Polignac number, because 25878965 - 2²⁰ = 24830389 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369665 + ... + 369734.

It is an arithmetic number, because the mean of its divisors is an integer number (4436400).

Almost surely, 2^25878965 is an apocalyptic number.

It is an amenable number.

25878965 is a deficient number, since it is larger than the sum of its proper divisors (9612235).

25878965 is an equidigital number, since it uses as much as digits as its factorization.

25878965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739411.

The product of its digits is 1209600, while the sum is 50.

The square root of 25878965 is about 5087.1372106520. The cubic root of 25878965 is about 295.7891920298.

The spelling of 25878965 in words is "twenty-five million, eight hundred seventy-eight thousand, nine hundred sixty-five".