25908671 has 4 divisors (see below), whose sum is σ = 25981200. Its totient is φ = 25836144.

The previous prime is 25908667. The next prime is 25908683. The reversal of 25908671 is 17680952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25908671 - 2² = 25908667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25908691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35726 + ... + 36443.

It is an arithmetic number, because the mean of its divisors is an integer number (6495300).

Almost surely, 2^25908671 is an apocalyptic number.

25908671 is a deficient number, since it is larger than the sum of its proper divisors (72529).

25908671 is an equidigital number, since it uses as much as digits as its factorization.

25908671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72528.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 25908671 is about 5090.0560900642. The cubic root of 25908671 is about 295.9023257898.

The spelling of 25908671 in words is "twenty-five million, nine hundred eight thousand, six hundred seventy-one".