25585243 has 4 divisors (see below), whose sum is σ = 25820080. Its totient is φ = 25350408.

The previous prime is 25585211. The next prime is 25585247. The reversal of 25585243 is 34258552.

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 25585243 - 2⁵ = 25585211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25585199 and 25585208.

It is not an unprimeable number, because it can be changed into a prime (25585247) 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 3 ways as a sum of consecutive naturals, for example, 117255 + ... + 117472.

It is an arithmetic number, because the mean of its divisors is an integer number (6455020).

Almost surely, 2^25585243 is an apocalyptic number.

25585243 is a deficient number, since it is larger than the sum of its proper divisors (234837).

25585243 is a wasteful number, since it uses less digits than its factorization.

25585243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234836.

The product of its digits is 48000, while the sum is 34.

The square root of 25585243 is about 5058.1857419434. The cubic root of 25585243 is about 294.6658785346.

The spelling of 25585243 in words is "twenty-five million, five hundred eighty-five thousand, two hundred forty-three".