56310017 has 2 divisors, whose sum is σ = 56310018. Its totient is φ = 56310016.

The previous prime is 56309993. The next prime is 56310019. The reversal of 56310017 is 71001365.

It is a Cunningham number, because it is equal to 7504²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56310016 + 1 = 7504^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 56310017 - 2¹⁶ = 56244481 is a prime.

Together with 56310019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56309974 and 56310001.

It is not a weakly prime, because it can be changed into another prime (56310019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28155008 + 28155009.

It is an arithmetic number, because the mean of its divisors is an integer number (28155009).

Almost surely, 2^56310017 is an apocalyptic number.

It is an amenable number.

56310017 is a deficient number, since it is larger than the sum of its proper divisors (1).

56310017 is an equidigital number, since it uses as much as digits as its factorization.

56310017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 56310017 is about 7504.0000666311. Note that the first 4 decimals coincide. The cubic root of 56310017 is about 383.2909391470.

The spelling of 56310017 in words is "fifty-six million, three hundred ten thousand, seventeen".