5500555550081 has 2 divisors, whose sum is σ = 5500555550082. Its totient is φ = 5500555550080.

The previous prime is 5500555550071. The next prime is 5500555550107. The reversal of 5500555550081 is 1800555550055.

5500555550081 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., 4813175271025 + 687380279056 = 2193895^2 + 829084^2 .

It is a cyclic number.

It is not a de Polignac number, because 5500555550081 - 2²² = 5500551355777 is a prime.

It is a super-2 number, since 2×5500555550081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5500555550071) 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, 2750277775040 + 2750277775041.

It is an arithmetic number, because the mean of its divisors is an integer number (2750277775041).

Almost surely, 2^{5500555550081} is an apocalyptic number.

It is an amenable number.

5500555550081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5500555550081 is an equidigital number, since it uses as much as digits as its factorization.

5500555550081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 625000, while the sum is 44.

The spelling of 5500555550081 in words is "five trillion, five hundred billion, five hundred fifty-five million, five hundred fifty thousand, eighty-one".