5505060005561 has 2 divisors, whose sum is σ = 5505060005562. Its totient is φ = 5505060005560.

The previous prime is 5505060005413. The next prime is 5505060005563. The reversal of 5505060005561 is 1655000605055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3410799517225 + 2094260488336 = 1846835^2 + 1447156^2 .

It is a cyclic number.

It is not a de Polignac number, because 5505060005561 - 2³⁴ = 5487880136377 is a prime.

Together with 5505060005563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5505060005563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752530002780 + 2752530002781.

It is an arithmetic number, because the mean of its divisors is an integer number (2752530002781).

Almost surely, 2^{5505060005561} is an apocalyptic number.

It is an amenable number.

5505060005561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5505060005561 is an equidigital number, since it uses as much as digits as its factorization.

5505060005561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 5505060005561 in words is "five trillion, five hundred five billion, sixty million, five thousand, five hundred sixty-one".