51042713 has 2 divisors, whose sum is σ = 51042714. Its totient is φ = 51042712.

The previous prime is 51042707. The next prime is 51042731. The reversal of 51042713 is 31724015.

51042713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (51042731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26708224 + 24334489 = 5168^2 + 4933^2 .

It is a cyclic number.

It is not a de Polignac number, because 51042713 - 2⁸ = 51042457 is a prime.

It is not a weakly prime, because it can be changed into another prime (51042743) 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, 25521356 + 25521357.

It is an arithmetic number, because the mean of its divisors is an integer number (25521357).

Almost surely, 2^51042713 is an apocalyptic number.

It is an amenable number.

51042713 is a deficient number, since it is larger than the sum of its proper divisors (1).

51042713 is an equidigital number, since it uses as much as digits as its factorization.

51042713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51042713 is about 7144.4183108214. The cubic root of 51042713 is about 370.9464762477.

Adding to 51042713 its reverse (31724015), we get a palindrome (82766728).

The spelling of 51042713 in words is "fifty-one million, forty-two thousand, seven hundred thirteen".