51000713 has 2 divisors, whose sum is σ = 51000714. Its totient is φ = 51000712.

The previous prime is 51000707. The next prime is 51000727. The reversal of 51000713 is 31700015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48052624 + 2948089 = 6932^2 + 1717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51000713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51000691 and 51000700.

It is not a weakly prime, because it can be changed into another prime (51000113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500356 + 25500357.

It is an arithmetic number, because the mean of its divisors is an integer number (25500357).

Almost surely, 2^51000713 is an apocalyptic number.

It is an amenable number.

51000713 is a deficient number, since it is larger than the sum of its proper divisors (1).

51000713 is an equidigital number, since it uses as much as digits as its factorization.

51000713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105, while the sum is 17.

The square root of 51000713 is about 7141.4783483534. The cubic root of 51000713 is about 370.8447050953.

Adding to 51000713 its reverse (31700015), we get a palindrome (82700728).

The spelling of 51000713 in words is "fifty-one million, seven hundred thirteen", and thus it is an aban number.