51713171 has 2 divisors, whose sum is σ = 51713172. Its totient is φ = 51713170.

The previous prime is 51713159. The next prime is 51713173. The reversal of 51713171 is 17131715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51713171 is a prime.

Together with 51713173, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51713171.

It is not a weakly prime, because it can be changed into another prime (51713173) 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, 25856585 + 25856586.

It is an arithmetic number, because the mean of its divisors is an integer number (25856586).

Almost surely, 2^51713171 is an apocalyptic number.

51713171 is a deficient number, since it is larger than the sum of its proper divisors (1).

51713171 is an equidigital number, since it uses as much as digits as its factorization.

51713171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 735, while the sum is 26.

The square root of 51713171 is about 7191.1870369223. The cubic root of 51713171 is about 372.5635727721.

Adding to 51713171 its reverse (17131715), we get a palindrome (68844886).

The spelling of 51713171 in words is "fifty-one million, seven hundred thirteen thousand, one hundred seventy-one".