25680827 has 4 divisors (see below), whose sum is σ = 25701840. Its totient is φ = 25659816.

The previous prime is 25680821. The next prime is 25680833. The reversal of 25680827 is 72808652.

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

It is an interprime number because it is at equal distance from previous prime (25680821) and next prime (25680833).

It is a cyclic number.

It is not a de Polignac number, because 25680827 - 2⁶ = 25680763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25680821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8552 + ... + 11157.

It is an arithmetic number, because the mean of its divisors is an integer number (6425460).

Almost surely, 2^25680827 is an apocalyptic number.

25680827 is a deficient number, since it is larger than the sum of its proper divisors (21013).

25680827 is a wasteful number, since it uses less digits than its factorization.

25680827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21012.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 25680827 is about 5067.6253807873. The cubic root of 25680827 is about 295.0323702868.

The spelling of 25680827 in words is "twenty-five million, six hundred eighty thousand, eight hundred twenty-seven".