5636555609 has 2 divisors, whose sum is σ = 5636555610. Its totient is φ = 5636555608.

The previous prime is 5636555593. The next prime is 5636555663. The reversal of 5636555609 is 9065556365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3969630025 + 1666925584 = 63005^2 + 40828^2 .

It is a cyclic number.

It is not a de Polignac number, because 5636555609 - 2⁴ = 5636555593 is a prime.

It is not a weakly prime, because it can be changed into another prime (5636555669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818277804 + 2818277805.

It is an arithmetic number, because the mean of its divisors is an integer number (2818277805).

Almost surely, 2^5636555609 is an apocalyptic number.

It is an amenable number.

5636555609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5636555609 is an equidigital number, since it uses as much as digits as its factorization.

5636555609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645000, while the sum is 50.

The square root of 5636555609 is about 75076.9978688546. The cubic root of 5636555609 is about 1779.6636583077.

The spelling of 5636555609 in words is "five billion, six hundred thirty-six million, five hundred fifty-five thousand, six hundred nine".