5555505550489 has 2 divisors, whose sum is σ = 5555505550490. Its totient is φ = 5555505550488.

The previous prime is 5555505550417. The next prime is 5555505550513. The reversal of 5555505550489 is 9840555055555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5553775656025 + 1729894464 = 2356645^2 + 41592^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555505550489 - 2²³ = 5555497161881 is a prime.

It is not a weakly prime, because it can be changed into another prime (5555505530489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777752775244 + 2777752775245.

It is an arithmetic number, because the mean of its divisors is an integer number (2777752775245).

Almost surely, 2^{5555505550489} is an apocalyptic number.

It is an amenable number.

5555505550489 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555505550489 is an equidigital number, since it uses as much as digits as its factorization.

5555505550489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112500000, while the sum is 61.

The spelling of 5555505550489 in words is "five trillion, five hundred fifty-five billion, five hundred five million, five hundred fifty thousand, four hundred eighty-nine".