51168017 has 2 divisors, whose sum is σ = 51168018. Its totient is φ = 51168016.

The previous prime is 51167999. The next prime is 51168023. The reversal of 51168017 is 71086115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45711121 + 5456896 = 6761^2 + 2336^2 .

It is a cyclic number.

It is not a de Polignac number, because 51168017 - 2⁶ = 51167953 is a prime.

It is equal to p_3066914 and since 51168017 and 3066914 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51168097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25584008 + 25584009.

It is an arithmetic number, because the mean of its divisors is an integer number (25584009).

Almost surely, 2^51168017 is an apocalyptic number.

It is an amenable number.

51168017 is a deficient number, since it is larger than the sum of its proper divisors (1).

51168017 is an equidigital number, since it uses as much as digits as its factorization.

51168017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 51168017 is about 7153.1822988094. The cubic root of 51168017 is about 371.2497718674.

The spelling of 51168017 in words is "fifty-one million, one hundred sixty-eight thousand, seventeen".