55133344135217 has 2 divisors, whose sum is σ = 55133344135218. Its totient is φ = 55133344135216.

The previous prime is 55133344135211. The next prime is 55133344135267. The reversal of 55133344135217 is 71253144333155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51672289462336 + 3461054672881 = 7188344^2 + 1860391^2 .

It is a cyclic number.

It is not a de Polignac number, because 55133344135217 - 2⁶ = 55133344135153 is a prime.

It is not a weakly prime, because it can be changed into another prime (55133344135211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27566672067608 + 27566672067609.

It is an arithmetic number, because the mean of its divisors is an integer number (27566672067609).

Almost surely, 2^{55133344135217} is an apocalyptic number.

It is an amenable number.

55133344135217 is a deficient number, since it is larger than the sum of its proper divisors (1).

55133344135217 is an equidigital number, since it uses as much as digits as its factorization.

55133344135217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 47.

The spelling of 55133344135217 in words is "fifty-five trillion, one hundred thirty-three billion, three hundred forty-four million, one hundred thirty-five thousand, two hundred seventeen".