27782256225 has 12 divisors (see below), whose sum is σ = 45933330416. Its totient is φ = 14817203280.

The previous prime is 27782256223. The next prime is 27782256253. The reversal of 27782256225 is 52265228772.

It is not a de Polignac number, because 27782256225 - 2¹ = 27782256223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27782256223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185214967 + ... + 185215116.

Almost surely, 2^27782256225 is an apocalyptic number.

27782256225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27782256225 is a deficient number, since it is larger than the sum of its proper divisors (18151074191).

27782256225 is a wasteful number, since it uses less digits than its factorization.

27782256225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370430096 (or 370430091 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 48.

The spelling of 27782256225 in words is "twenty-seven billion, seven hundred eighty-two million, two hundred fifty-six thousand, two hundred twenty-five".