55505560611 has 4 divisors (see below), whose sum is σ = 74007414152. Its totient is φ = 37003707072.

The previous prime is 55505560597. The next prime is 55505560631. The reversal of 55505560611 is 11606550555.

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

It is not a de Polignac number, because 55505560611 - 2⁷ = 55505560483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55505560611.

It is not an unprimeable number, because it can be changed into a prime (55505560631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250926766 + ... + 9250926771.

It is an arithmetic number, because the mean of its divisors is an integer number (18501853538).

Almost surely, 2^55505560611 is an apocalyptic number.

55505560611 is a deficient number, since it is larger than the sum of its proper divisors (18501853541).

55505560611 is a wasteful number, since it uses less digits than its factorization.

55505560611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18501853540.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55505560611 in words is "fifty-five billion, five hundred five million, five hundred sixty thousand, six hundred eleven".