25650865 has 8 divisors (see below), whose sum is σ = 32119488. Its totient is φ = 19628400.

The previous prime is 25650851. The next prime is 25650881. The reversal of 25650865 is 56805652.

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

It is a de Polignac number, because none of the positive numbers 2^k-25650865 is a prime.

It is a Duffinian 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, 111411 + ... + 111640.

It is an arithmetic number, because the mean of its divisors is an integer number (4014936).

Almost surely, 2^25650865 is an apocalyptic number.

It is an amenable number.

25650865 is a deficient number, since it is larger than the sum of its proper divisors (6468623).

25650865 is a wasteful number, since it uses less digits than its factorization.

25650865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223079.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 25650865 is about 5064.6683010835. The cubic root of 25650865 is about 294.9175868609.

The spelling of 25650865 in words is "twenty-five million, six hundred fifty thousand, eight hundred sixty-five".