51756713 has 2 divisors, whose sum is σ = 51756714. Its totient is φ = 51756712.

The previous prime is 51756709. The next prime is 51756751. The reversal of 51756713 is 31765715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29506624 + 22250089 = 5432^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 51756713 - 2² = 51756709 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51756773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25878356 + 25878357.

It is an arithmetic number, because the mean of its divisors is an integer number (25878357).

Almost surely, 2^51756713 is an apocalyptic number.

It is an amenable number.

51756713 is a deficient number, since it is larger than the sum of its proper divisors (1).

51756713 is an equidigital number, since it uses as much as digits as its factorization.

51756713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 35.

The square root of 51756713 is about 7194.2138555926. The cubic root of 51756713 is about 372.6681084376.

The spelling of 51756713 in words is "fifty-one million, seven hundred fifty-six thousand, seven hundred thirteen".