51022747 has 2 divisors, whose sum is σ = 51022748. Its totient is φ = 51022746.

The previous prime is 51022739. The next prime is 51022757. The reversal of 51022747 is 74722015.

51022747 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 51022747 - 2³ = 51022739 is a prime.

It is a super-2 number, since 2×51022747² = 5206641422852018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51022757) 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, 25511373 + 25511374.

It is an arithmetic number, because the mean of its divisors is an integer number (25511374).

Almost surely, 2^51022747 is an apocalyptic number.

51022747 is a deficient number, since it is larger than the sum of its proper divisors (1).

51022747 is an equidigital number, since it uses as much as digits as its factorization.

51022747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 51022747 is about 7143.0208595524. The cubic root of 51022747 is about 370.8981031447.

The spelling of 51022747 in words is "fifty-one million, twenty-two thousand, seven hundred forty-seven".