5555500555505 has 4 divisors (see below), whose sum is σ = 6666600666612. Its totient is φ = 4444400444400.

The previous prime is 5555500555469. The next prime is 5555500555511. The reversal of 5555500555505 is 5055550055555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1839905057761 + 3715595497744 = 1356431^2 + 1927588^2 .

It is not a de Polignac number, because 5555500555505 - 2⁴⁰ = 4455988927729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555550055546 + ... + 555550055555.

It is an arithmetic number, because the mean of its divisors is an integer number (1666650166653).

Almost surely, 2^{5555500555505} is an apocalyptic number.

It is an amenable number.

5555500555505 is a deficient number, since it is larger than the sum of its proper divisors (1111100111107).

5555500555505 is a wasteful number, since it uses less digits than its factorization.

5555500555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111100111106.

The product of its (nonzero) digits is 9765625, while the sum is 50.

It can be divided in two parts, 555550055550 and 5, that added together give a palindrome (555550055555).

The spelling of 5555500555505 in words is "five trillion, five hundred fifty-five billion, five hundred million, five hundred fifty-five thousand, five hundred five".