25678163 has 8 divisors (see below), whose sum is σ = 29377632. Its totient is φ = 21986496.

The previous prime is 25678153. The next prime is 25678183. The reversal of 25678163 is 36187652.

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

It is not a de Polignac number, because 25678163 - 2⁶ = 25678099 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25678123) 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, 10031 + ... + 12327.

It is an arithmetic number, because the mean of its divisors is an integer number (3672204).

Almost surely, 2^25678163 is an apocalyptic number.

25678163 is a deficient number, since it is larger than the sum of its proper divisors (3699469).

25678163 is a wasteful number, since it uses less digits than its factorization.

25678163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3901.

The product of its digits is 60480, while the sum is 38.

The square root of 25678163 is about 5067.3625289691. The cubic root of 25678163 is about 295.0221682087.

The spelling of 25678163 in words is "twenty-five million, six hundred seventy-eight thousand, one hundred sixty-three".