51782981153227 has 2 divisors, whose sum is σ = 51782981153228. Its totient is φ = 51782981153226.

The previous prime is 51782981153131. The next prime is 51782981153269. The reversal of 51782981153227 is 72235118928715.

51782981153227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51782981153227 - 2²⁷ = 51782846935499 is a prime.

It is not a weakly prime, because it can be changed into another prime (51782981153297) by changing a digit.

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 as a sum of consecutive naturals, namely, 25891490576613 + 25891490576614.

It is an arithmetic number, because the mean of its divisors is an integer number (25891490576614).

Almost surely, 2^{51782981153227} is an apocalyptic number.

51782981153227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51782981153227 is an equidigital number, since it uses as much as digits as its factorization.

51782981153227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16934400, while the sum is 61.

The spelling of 51782981153227 in words is "fifty-one trillion, seven hundred eighty-two billion, nine hundred eighty-one million, one hundred fifty-three thousand, two hundred twenty-seven".