55515560017219 has 2 divisors, whose sum is σ = 55515560017220. Its totient is φ = 55515560017218.

The previous prime is 55515560017147. The next prime is 55515560017237. The reversal of 55515560017219 is 91271006551555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55515560017219 - 2⁷ = 55515560017091 is a prime.

It is a super-2 number, since 2×55515560017219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55515660017219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27757780008609 + 27757780008610.

It is an arithmetic number, because the mean of its divisors is an integer number (27757780008610).

Almost surely, 2^{55515560017219} is an apocalyptic number.

55515560017219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55515560017219 is an equidigital number, since it uses as much as digits as its factorization.

55515560017219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2362500, while the sum is 52.

The spelling of 55515560017219 in words is "fifty-five trillion, five hundred fifteen billion, five hundred sixty million, seventeen thousand, two hundred nineteen".