55005505505055 has 48 divisors (see below), whose sum is σ = 109120976799744. Its totient is φ = 25108984013760.

The previous prime is 55005505504997. The next prime is 55005505505107. The reversal of 55005505505055 is 55050550550055.

It is not a de Polignac number, because 55005505505055 - 2⁷ = 55005505504927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55005505505055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126135919 + ... + 126571248.

It is an arithmetic number, because the mean of its divisors is an integer number (2273353683328).

Almost surely, 2^{55005505505055} is an apocalyptic number.

55005505505055 is a deficient number, since it is larger than the sum of its proper divisors (54115471294689).

55005505505055 is a wasteful number, since it uses less digits than its factorization.

55005505505055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252707876 (or 252707873 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55005505505055 in words is "fifty-five trillion, five billion, five hundred five million, five hundred five thousand, fifty-five".