5569649081 has 2 divisors, whose sum is σ = 5569649082. Its totient is φ = 5569649080.

The previous prime is 5569649053. The next prime is 5569649119. The reversal of 5569649081 is 1809469655.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4796809081 + 772840000 = 69259^2 + 27800^2 .

It is a cyclic number.

It is not a de Polignac number, because 5569649081 - 2³⁰ = 4495907257 is a prime.

It is a super-2 number, since 2×5569649081² = 62041981770968289122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5569649011) 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, 2784824540 + 2784824541.

It is an arithmetic number, because the mean of its divisors is an integer number (2784824541).

Almost surely, 2^5569649081 is an apocalyptic number.

It is an amenable number.

5569649081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5569649081 is an equidigital number, since it uses as much as digits as its factorization.

5569649081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 5569649081 is about 74630.0816092278. The cubic root of 5569649081 is about 1772.5940112055.

The spelling of 5569649081 in words is "five billion, five hundred sixty-nine million, six hundred forty-nine thousand, eighty-one".