5555500000009 has 2 divisors, whose sum is σ = 5555500000010. Its totient is φ = 5555500000008.

The previous prime is 5555499999997. The next prime is 5555500000027. The reversal of 5555500000009 is 9000000055555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4794194889225 + 761305110784 = 2189565^2 + 872528^2 .

It is a cyclic number.

It is not a de Polignac number, because 5555500000009 - 2⁵ = 5555499999977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5555500000009.

It is not a weakly prime, because it can be changed into another prime (5555500030009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777750000004 + 2777750000005.

It is an arithmetic number, because the mean of its divisors is an integer number (2777750000005).

Almost surely, 2^{5555500000009} is an apocalyptic number.

It is an amenable number.

5555500000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555500000009 is an equidigital number, since it uses as much as digits as its factorization.

5555500000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28125, while the sum is 34.

The spelling of 5555500000009 in words is "five trillion, five hundred fifty-five billion, five hundred million, nine", and thus it is an aban number.