5155636609 has 2 divisors, whose sum is σ = 5155636610. Its totient is φ = 5155636608.

The previous prime is 5155636601. The next prime is 5155636627. The reversal of 5155636609 is 9066365515.

5155636609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5055636609 + 100000000 = 71103^2 + 10000^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155636609 - 2³ = 5155636601 is a prime.

It is a super-2 number, since 2×5155636609² = 53161177688122037762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5155636601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577818304 + 2577818305.

It is an arithmetic number, because the mean of its divisors is an integer number (2577818305).

Almost surely, 2^5155636609 is an apocalyptic number.

It is an amenable number.

5155636609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155636609 is an equidigital number, since it uses as much as digits as its factorization.

5155636609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729000, while the sum is 46.

The square root of 5155636609 is about 71802.7618479958. The cubic root of 5155636609 is about 1727.5372990663.

The spelling of 5155636609 in words is "five billion, one hundred fifty-five million, six hundred thirty-six thousand, six hundred nine".