555560043217 has 2 divisors, whose sum is σ = 555560043218. Its totient is φ = 555560043216.

The previous prime is 555560043209. The next prime is 555560043277. The reversal of 555560043217 is 712340065555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352552125121 + 203007918096 = 593761^2 + 450564^2 .

It is a cyclic number.

It is not a de Polignac number, because 555560043217 - 2³ = 555560043209 is a prime.

It is not a weakly prime, because it can be changed into another prime (555560043277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277780021608 + 277780021609.

It is an arithmetic number, because the mean of its divisors is an integer number (277780021609).

Almost surely, 2^555560043217 is an apocalyptic number.

It is an amenable number.

555560043217 is a deficient number, since it is larger than the sum of its proper divisors (1).

555560043217 is an equidigital number, since it uses as much as digits as its factorization.

555560043217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 555560043217 in words is "five hundred fifty-five billion, five hundred sixty million, forty-three thousand, two hundred seventeen".