25869641 has 8 divisors (see below), whose sum is σ = 30850944. Its totient is φ = 21209760.

The previous prime is 25869637. The next prime is 25869661. The reversal of 25869641 is 14696852.

It is a happy number.

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 25869641 - 2² = 25869637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25869661) by changing a digit.

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, 80180 + ... + 80501.

It is an arithmetic number, because the mean of its divisors is an integer number (3856368).

Almost surely, 2^25869641 is an apocalyptic number.

It is an amenable number.

25869641 is a deficient number, since it is larger than the sum of its proper divisors (4981303).

25869641 is a wasteful number, since it uses less digits than its factorization.

25869641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160711.

The product of its digits is 103680, while the sum is 41.

The square root of 25869641 is about 5086.2206991046. The cubic root of 25869641 is about 295.7536642087.

The spelling of 25869641 in words is "twenty-five million, eight hundred sixty-nine thousand, six hundred forty-one".