55643234655 has 32 divisors (see below), whose sum is σ = 89204541120. Its totient is φ = 29618012160.

The previous prime is 55643234639. The next prime is 55643234677.

It is a happy number.

55643234655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55643234655 - 2⁴ = 55643234639 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 27918339 + ... + 27920331.

It is an arithmetic number, because the mean of its divisors is an integer number (2787641910).

Almost surely, 2^55643234655 is an apocalyptic number.

55643234655 is a deficient number, since it is larger than the sum of its proper divisors (33561306465).

55643234655 is a wasteful number, since it uses less digits than its factorization.

55643234655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731.

The product of its digits is 6480000, while the sum is 48.

The spelling of 55643234655 in words is "fifty-five billion, six hundred forty-three million, two hundred thirty-four thousand, six hundred fifty-five".