51606617 has 2 divisors, whose sum is σ = 51606618. Its totient is φ = 51606616.

The previous prime is 51606559. The next prime is 51606623. The reversal of 51606617 is 71660615.

51606617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34058896 + 17547721 = 5836^2 + 4189^2 .

It is a cyclic number.

It is not a de Polignac number, because 51606617 - 2⁸ = 51606361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51606637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25803308 + 25803309.

It is an arithmetic number, because the mean of its divisors is an integer number (25803309).

Almost surely, 2^51606617 is an apocalyptic number.

It is an amenable number.

51606617 is a deficient number, since it is larger than the sum of its proper divisors (1).

51606617 is an equidigital number, since it uses as much as digits as its factorization.

51606617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 51606617 is about 7183.7745649484. The cubic root of 51606617 is about 372.3075101149.

The spelling of 51606617 in words is "fifty-one million, six hundred six thousand, six hundred seventeen".