51336517 has 2 divisors, whose sum is σ = 51336518. Its totient is φ = 51336516.

The previous prime is 51336473. The next prime is 51336553. The reversal of 51336517 is 71563315.

51336517 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., 31967716 + 19368801 = 5654^2 + 4401^2 .

It is a cyclic number.

It is not a de Polignac number, because 51336517 - 2¹¹ = 51334469 is a prime.

It is equal to p_3076375 and since 51336517 and 3076375 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51336317) 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, 25668258 + 25668259.

It is an arithmetic number, because the mean of its divisors is an integer number (25668259).

Almost surely, 2^51336517 is an apocalyptic number.

It is an amenable number.

51336517 is a deficient number, since it is larger than the sum of its proper divisors (1).

51336517 is an equidigital number, since it uses as much as digits as its factorization.

51336517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 31.

The square root of 51336517 is about 7164.9505929909. The cubic root of 51336517 is about 371.6568428522.

The spelling of 51336517 in words is "fifty-one million, three hundred thirty-six thousand, five hundred seventeen".