25800867 has 12 divisors (see below), whose sum is σ = 37328304. Its totient is φ = 17172720.

The previous prime is 25800857. The next prime is 25800889. The reversal of 25800867 is 76800852.

It is not a de Polignac number, because 25800867 - 2⁴ = 25800851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25800857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4642 + ... + 8552.

It is an arithmetic number, because the mean of its divisors is an integer number (3110692).

Almost surely, 2^25800867 is an apocalyptic number.

25800867 is a deficient number, since it is larger than the sum of its proper divisors (11527437).

25800867 is a wasteful number, since it uses less digits than its factorization.

25800867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650 (or 4647 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 25800867 is about 5079.4553841923. The cubic root of 25800867 is about 295.4913462555.

The spelling of 25800867 in words is "twenty-five million, eight hundred thousand, eight hundred sixty-seven".