25632782259 has 16 divisors (see below), whose sum is σ = 39065740800. Its totient is φ = 14644955520.

The previous prime is 25632782243. The next prime is 25632782261. The reversal of 25632782259 is 95228723652.

It is not a de Polignac number, because 25632782259 - 2⁴ = 25632782243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25632782209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40794 + ... + 230064.

It is an arithmetic number, because the mean of its divisors is an integer number (2441608800).

Almost surely, 2^25632782259 is an apocalyptic number.

25632782259 is a deficient number, since it is larger than the sum of its proper divisors (13432958541).

25632782259 is a wasteful number, since it uses less digits than its factorization.

25632782259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195730.

The product of its digits is 3628800, while the sum is 51.

The spelling of 25632782259 in words is "twenty-five billion, six hundred thirty-two million, seven hundred eighty-two thousand, two hundred fifty-nine".