25689085 has 8 divisors (see below), whose sum is σ = 30858336. Its totient is φ = 20530320.

The previous prime is 25689067. The next prime is 25689089. The reversal of 25689085 is 58098652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25689085 - 2¹⁵ = 25656317 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 (25689089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570 + ... + 8500.

It is an arithmetic number, because the mean of its divisors is an integer number (3857292).

Almost surely, 2^25689085 is an apocalyptic number.

It is an amenable number.

25689085 is a deficient number, since it is larger than the sum of its proper divisors (5169251).

25689085 is a wasteful number, since it uses less digits than its factorization.

25689085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 25689085 is about 5068.4400953351. The cubic root of 25689085 is about 295.0639907147.

The spelling of 25689085 in words is "twenty-five million, six hundred eighty-nine thousand, eighty-five".