51080317 has 2 divisors, whose sum is σ = 51080318. Its totient is φ = 51080316.

The previous prime is 51080279. The next prime is 51080321. The reversal of 51080317 is 71308015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50993881 + 86436 = 7141^2 + 294^2 .

It is a cyclic number.

It is not a de Polignac number, because 51080317 - 2¹⁹ = 50556029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51080291 and 51080300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51080377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25540158 + 25540159.

It is an arithmetic number, because the mean of its divisors is an integer number (25540159).

Almost surely, 2^51080317 is an apocalyptic number.

It is an amenable number.

51080317 is a deficient number, since it is larger than the sum of its proper divisors (1).

51080317 is an equidigital number, since it uses as much as digits as its factorization.

51080317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 51080317 is about 7147.0495311002. The cubic root of 51080317 is about 371.0375479951.

The spelling of 51080317 in words is "fifty-one million, eighty thousand, three hundred seventeen".