25800089 has 16 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 21017040.

The previous prime is 25800083. The next prime is 25800107. The reversal of 25800089 is 98000852.

It is a cyclic number.

It is not a de Polignac number, because 25800089 - 2⁸ = 25799833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25800083) 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 15 ways as a sum of consecutive naturals, for example, 30332 + ... + 31170.

It is an arithmetic number, because the mean of its divisors is an integer number (1935360).

Almost surely, 2^25800089 is an apocalyptic number.

It is an amenable number.

25800089 is a deficient number, since it is larger than the sum of its proper divisors (5165671).

25800089 is a wasteful number, since it uses less digits than its factorization.

25800089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 25800089 is about 5079.3788006015. The cubic root of 25800089 is about 295.4883761412.

The spelling of 25800089 in words is "twenty-five million, eight hundred thousand, eighty-nine".