51039773 has 2 divisors, whose sum is σ = 51039774. Its totient is φ = 51039772.

The previous prime is 51039683. The next prime is 51039787. The reversal of 51039773 is 37793015.

51039773 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 can be written as a sum of positive squares in only one way, i.e., 39601849 + 11437924 = 6293^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 51039773 - 2⁸ = 51039517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51039173) 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, 25519886 + 25519887.

It is an arithmetic number, because the mean of its divisors is an integer number (25519887).

Almost surely, 2^51039773 is an apocalyptic number.

It is an amenable number.

51039773 is a deficient number, since it is larger than the sum of its proper divisors (1).

51039773 is an equidigital number, since it uses as much as digits as its factorization.

51039773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 51039773 is about 7144.2125528290. The cubic root of 51039773 is about 370.9393540846.

The spelling of 51039773 in words is "fifty-one million, thirty-nine thousand, seven hundred seventy-three".