25683538835 has 4 divisors (see below), whose sum is σ = 30820246608. Its totient is φ = 20546831064.

The previous prime is 25683538813. The next prime is 25683538891. The reversal of 25683538835 is 53883538652.

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 25683538835 - 2¹⁴ = 25683522451 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2568353879 + ... + 2568353888.

It is an arithmetic number, because the mean of its divisors is an integer number (7705061652).

Almost surely, 2^25683538835 is an apocalyptic number.

25683538835 is a deficient number, since it is larger than the sum of its proper divisors (5136707773).

25683538835 is an equidigital number, since it uses as much as digits as its factorization.

25683538835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136707772.

The product of its digits is 20736000, while the sum is 56.

The spelling of 25683538835 in words is "twenty-five billion, six hundred eighty-three million, five hundred thirty-eight thousand, eight hundred thirty-five".