25989000145 has 16 divisors (see below), whose sum is σ = 31337031168. Its totient is φ = 20691233920.

The previous prime is 25989000139. The next prime is 25989000161. The reversal of 25989000145 is 54100098952.

It is not a de Polignac number, because 25989000145 - 2¹⁹ = 25988475857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1150752 + ... + 1173118.

It is an arithmetic number, because the mean of its divisors is an integer number (1958564448).

Almost surely, 2^25989000145 is an apocalyptic number.

It is an amenable number.

25989000145 is a deficient number, since it is larger than the sum of its proper divisors (5348031023).

25989000145 is a wasteful number, since it uses less digits than its factorization.

25989000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23480.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 25989000145 in words is "twenty-five billion, nine hundred eighty-nine million, one hundred forty-five", and thus it is an aban number.