51306793 has 2 divisors, whose sum is σ = 51306794. Its totient is φ = 51306792.

The previous prime is 51306757. The next prime is 51306811. The reversal of 51306793 is 39760315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49449024 + 1857769 = 7032^2 + 1363^2 .

It is a cyclic number.

It is not a de Polignac number, because 51306793 - 2¹³ = 51298601 is a prime.

It is not a weakly prime, because it can be changed into another prime (51306733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25653396 + 25653397.

It is an arithmetic number, because the mean of its divisors is an integer number (25653397).

Almost surely, 2^51306793 is an apocalyptic number.

It is an amenable number.

51306793 is a deficient number, since it is larger than the sum of its proper divisors (1).

51306793 is an equidigital number, since it uses as much as digits as its factorization.

51306793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 51306793 is about 7162.8760285237. The cubic root of 51306793 is about 371.5850988551.

The spelling of 51306793 in words is "fifty-one million, three hundred six thousand, seven hundred ninety-three".