51572791 has 2 divisors, whose sum is σ = 51572792. Its totient is φ = 51572790.

The previous prime is 51572789. The next prime is 51572803. The reversal of 51572791 is 19727515.

51572791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51572791 - 2¹ = 51572789 is a prime.

Together with 51572789, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51572791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51572761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25786395 + 25786396.

It is an arithmetic number, because the mean of its divisors is an integer number (25786396).

Almost surely, 2^51572791 is an apocalyptic number.

51572791 is a deficient number, since it is larger than the sum of its proper divisors (1).

51572791 is an equidigital number, since it uses as much as digits as its factorization.

51572791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 37.

The square root of 51572791 is about 7181.4198456851. The cubic root of 51572791 is about 372.2261482850.

The spelling of 51572791 in words is "fifty-one million, five hundred seventy-two thousand, seven hundred ninety-one".