5505506000081 has 2 divisors, whose sum is σ = 5505506000082. Its totient is φ = 5505506000080.

The previous prime is 5505506000077. The next prime is 5505506000089. The reversal of 5505506000081 is 1800006055055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3406180301056 + 2099325699025 = 1845584^2 + 1448905^2 .

It is a cyclic number.

It is not a de Polignac number, because 5505506000081 - 2² = 5505506000077 is a prime.

It is a super-2 number, since 2×5505506000081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5505506000089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752753000040 + 2752753000041.

It is an arithmetic number, because the mean of its divisors is an integer number (2752753000041).

Almost surely, 2^{5505506000081} is an apocalyptic number.

It is an amenable number.

5505506000081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5505506000081 is an equidigital number, since it uses as much as digits as its factorization.

5505506000081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 5505506000081 in words is "five trillion, five hundred five billion, five hundred six million, eighty-one", and thus it is an aban number.