56928017 has 2 divisors, whose sum is σ = 56928018. Its totient is φ = 56928016.

The previous prime is 56928007. The next prime is 56928023. The reversal of 56928017 is 71082965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 13315201 = 6604^2 + 3649^2 .

It is a cyclic number.

It is not a de Polignac number, because 56928017 - 2¹⁰ = 56926993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56928007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28464008 + 28464009.

It is an arithmetic number, because the mean of its divisors is an integer number (28464009).

Almost surely, 2^56928017 is an apocalyptic number.

It is an amenable number.

56928017 is a deficient number, since it is larger than the sum of its proper divisors (1).

56928017 is an equidigital number, since it uses as much as digits as its factorization.

56928017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 56928017 is about 7545.0657386135. The cubic root of 56928017 is about 384.6880409908.

The spelling of 56928017 in words is "fifty-six million, nine hundred twenty-eight thousand, seventeen".