5509888961 has 2 divisors, whose sum is σ = 5509888962. Its totient is φ = 5509888960.

The previous prime is 5509888919. The next prime is 5509888987. The reversal of 5509888961 is 1698889055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4857393025 + 652495936 = 69695^2 + 25544^2 .

It is a cyclic number.

It is not a de Polignac number, because 5509888961 - 2⁶ = 5509888897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5509888961.

It is not a weakly prime, because it can be changed into another prime (5509848961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2754944480 + 2754944481.

It is an arithmetic number, because the mean of its divisors is an integer number (2754944481).

Almost surely, 2^5509888961 is an apocalyptic number.

It is an amenable number.

5509888961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5509888961 is an equidigital number, since it uses as much as digits as its factorization.

5509888961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 59.

The square root of 5509888961 is about 74228.6262906704. The cubic root of 5509888961 is about 1766.2314577949.

The spelling of 5509888961 in words is "five billion, five hundred nine million, eight hundred eighty-eight thousand, nine hundred sixty-one".