5066518649 has 2 divisors, whose sum is σ = 5066518650. Its totient is φ = 5066518648.

The previous prime is 5066518609. The next prime is 5066518657. The reversal of 5066518649 is 9468156605.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4250388025 + 816130624 = 65195^2 + 28568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5066518649 is a prime.

It is a super-3 number, since 3×5066518649³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 5066518597 and 5066518606.

It is not a weakly prime, because it can be changed into another prime (5066518609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2533259324 + 2533259325.

It is an arithmetic number, because the mean of its divisors is an integer number (2533259325).

Almost surely, 2^5066518649 is an apocalyptic number.

It is an amenable number.

5066518649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5066518649 is an equidigital number, since it uses as much as digits as its factorization.

5066518649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 5066518649 is about 71179.4819382665. The cubic root of 5066518649 is about 1717.5255848727.

The spelling of 5066518649 in words is "five billion, sixty-six million, five hundred eighteen thousand, six hundred forty-nine".