55844644855 has 16 divisors (see below), whose sum is σ = 67943657664. Its totient is φ = 44055878400.

The previous prime is 55844644813. The next prime is 55844644873.

55844644855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55844644855 - 2⁷ = 55844644727 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 55844644855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2883705 + ... + 2903005.

It is an arithmetic number, because the mean of its divisors is an integer number (4246478604).

Almost surely, 2^55844644855 is an apocalyptic number.

55844644855 is a deficient number, since it is larger than the sum of its proper divisors (12099012809).

55844644855 is a wasteful number, since it uses less digits than its factorization.

55844644855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27306.

The product of its digits is 61440000, while the sum is 58.

The spelling of 55844644855 in words is "fifty-five billion, eight hundred forty-four million, six hundred forty-four thousand, eight hundred fifty-five".