55005505555505 has 4 divisors (see below), whose sum is σ = 66006606666612. Its totient is φ = 44004404444400.

The previous prime is 55005505555463. The next prime is 55005505555573. The reversal of 55005505555505 is 50555550550055.

55005505555505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10801995916321 + 44203509639184 = 3286639^2 + 6648572^2 .

It is not a de Polignac number, because 55005505555505 - 2²⁰ = 55005504506929 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, 5500550555546 + ... + 5500550555555.

It is an arithmetic number, because the mean of its divisors is an integer number (16501651666653).

Almost surely, 2^{55005505555505} is an apocalyptic number.

It is an amenable number.

55005505555505 is a deficient number, since it is larger than the sum of its proper divisors (11001101111107).

55005505555505 is a wasteful number, since it uses less digits than its factorization.

55005505555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001101111106.

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

The spelling of 55005505555505 in words is "fifty-five trillion, five billion, five hundred five million, five hundred fifty-five thousand, five hundred five".