25835 has 4 divisors (see below), whose sum is σ = 31008. Its totient is φ = 20664.

The previous prime is 25819. The next prime is 25841. The reversal of 25835 is 53852.

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

It is a cyclic number.

It is not a de Polignac number, because 25835 - 2⁴ = 25819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25835.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2579 + ... + 2588.

It is an arithmetic number, because the mean of its divisors is an integer number (7752).

2²⁵⁸³⁵ is an apocalyptic number.

25835 is a deficient number, since it is larger than the sum of its proper divisors (5173).

25835 is an equidigital number, since it uses as much as digits as its factorization.

25835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172.

The product of its digits is 1200, while the sum is 23.

The square root of 25835 is about 160.7326973581. The cubic root of 25835 is about 29.5621594613.

The spelling of 25835 in words is "twenty-five thousand, eight hundred thirty-five".