5649532397 has 2 divisors, whose sum is σ = 5649532398. Its totient is φ = 5649532396.

The previous prime is 5649532391. The next prime is 5649532423. The reversal of 5649532397 is 7932359465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3163612516 + 2485919881 = 56246^2 + 49859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5649532397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5649532391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2824766198 + 2824766199.

It is an arithmetic number, because the mean of its divisors is an integer number (2824766199).

Almost surely, 2^5649532397 is an apocalyptic number.

It is an amenable number.

5649532397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5649532397 is an equidigital number, since it uses as much as digits as its factorization.

5649532397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6123600, while the sum is 53.

The square root of 5649532397 is about 75163.3713786177. The cubic root of 5649532397 is about 1781.0283580308.

The spelling of 5649532397 in words is "five billion, six hundred forty-nine million, five hundred thirty-two thousand, three hundred ninety-seven".