5206351118249 has 2 divisors, whose sum is σ = 5206351118250. Its totient is φ = 5206351118248.

The previous prime is 5206351118203. The next prime is 5206351118263. The reversal of 5206351118249 is 9428111536025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4282747470400 + 923603647849 = 2069480^2 + 961043^2 .

It is a cyclic number.

It is not a de Polignac number, because 5206351118249 - 2⁸ = 5206351117993 is a prime.

It is a super-2 number, since 2×5206351118249² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5206351111249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603175559124 + 2603175559125.

It is an arithmetic number, because the mean of its divisors is an integer number (2603175559125).

Almost surely, 2^{5206351118249} is an apocalyptic number.

It is an amenable number.

5206351118249 is a deficient number, since it is larger than the sum of its proper divisors (1).

5206351118249 is an equidigital number, since it uses as much as digits as its factorization.

5206351118249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 5206351118249 in words is "five trillion, two hundred six billion, three hundred fifty-one million, one hundred eighteen thousand, two hundred forty-nine".