25930871 has 4 divisors (see below), whose sum is σ = 26009544. Its totient is φ = 25852200.

The previous prime is 25930811. The next prime is 25930873. The reversal of 25930871 is 17803952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25930871 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 (25930873) 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, 38840 + ... + 39501.

It is an arithmetic number, because the mean of its divisors is an integer number (6502386).

Almost surely, 2^25930871 is an apocalyptic number.

25930871 is a deficient number, since it is larger than the sum of its proper divisors (78673).

25930871 is an equidigital number, since it uses as much as digits as its factorization.

25930871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78672.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 25930871 is about 5092.2363456540. The cubic root of 25930871 is about 295.9868168891.

The spelling of 25930871 in words is "twenty-five million, nine hundred thirty thousand, eight hundred seventy-one".