55550550550555 has 16 divisors (see below), whose sum is σ = 69579908536320. Its totient is φ = 42495439539168.

The previous prime is 55550550550541. The next prime is 55550550550717. The reversal of 55550550550555 is 55505505505555.

55550550550555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55550550550555 is a prime.

It is a super-2 number, since 2×55550550550555² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55550550550496 and 55550550550505.

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 15 ways as a sum of consecutive naturals, for example, 72388467 + ... + 73151836.

It is an arithmetic number, because the mean of its divisors is an integer number (4348744283520).

Almost surely, 2^{55550550550555} is an apocalyptic number.

55550550550555 is a deficient number, since it is larger than the sum of its proper divisors (14029357985765).

55550550550555 is a wasteful number, since it uses less digits than its factorization.

55550550550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145543650.

The product of its (nonzero) digits is 48828125, while the sum is 55.

The spelling of 55550550550555 in words is "fifty-five trillion, five hundred fifty billion, five hundred fifty million, five hundred fifty thousand, five hundred fifty-five".