5531766817 has 2 divisors, whose sum is σ = 5531766818. Its totient is φ = 5531766816.

The previous prime is 5531766811. The next prime is 5531766887. The reversal of 5531766817 is 7186671355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4035933841 + 1495832976 = 63529^2 + 38676^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531766817 - 2⁷ = 5531766689 is a prime.

It is a super-2 number, since 2×5531766817² = 61200888235324622978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5531766811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765883408 + 2765883409.

It is an arithmetic number, because the mean of its divisors is an integer number (2765883409).

Almost surely, 2^5531766817 is an apocalyptic number.

It is an amenable number.

5531766817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531766817 is an equidigital number, since it uses as much as digits as its factorization.

5531766817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 49.

The square root of 5531766817 is about 74375.8483447416. The cubic root of 5531766817 is about 1768.5660678318.

The spelling of 5531766817 in words is "five billion, five hundred thirty-one million, seven hundred sixty-six thousand, eight hundred seventeen".