55621633222 has 16 divisors (see below), whose sum is σ = 85557990672. Its totient is φ = 27105109920.

The previous prime is 55621633187. The next prime is 55621633229. The reversal of 55621633222 is 22233612655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55621633229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 661833 + ... + 741124.

It is an arithmetic number, because the mean of its divisors is an integer number (5347374417).

Almost surely, 2^55621633222 is an apocalyptic number.

55621633222 is a deficient number, since it is larger than the sum of its proper divisors (29936357450).

55621633222 is a wasteful number, since it uses less digits than its factorization.

55621633222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403463.

The product of its digits is 129600, while the sum is 37.

The spelling of 55621633222 in words is "fifty-five billion, six hundred twenty-one million, six hundred thirty-three thousand, two hundred twenty-two".