25316288345 has 4 divisors (see below), whose sum is σ = 30379546020. Its totient is φ = 20253030672.

The previous prime is 25316288297. The next prime is 25316288359. The reversal of 25316288345 is 54388261352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17609555401 + 7706732944 = 132701^2 + 87788^2 .

It is a cyclic number.

It is not a de Polignac number, because 25316288345 - 2⁶ = 25316288281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25316288345.

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, 2531628830 + ... + 2531628839.

It is an arithmetic number, because the mean of its divisors is an integer number (7594886505).

Almost surely, 2^25316288345 is an apocalyptic number.

It is an amenable number.

25316288345 is a deficient number, since it is larger than the sum of its proper divisors (5063257675).

25316288345 is an equidigital number, since it uses as much as digits as its factorization.

25316288345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063257674.

The product of its digits is 1382400, while the sum is 47.

The spelling of 25316288345 in words is "twenty-five billion, three hundred sixteen million, two hundred eighty-eight thousand, three hundred forty-five".