55406385222 has 16 divisors (see below), whose sum is σ = 116645021760. Its totient is φ = 17496753192.

The previous prime is 55406385211. The next prime is 55406385253. The reversal of 55406385222 is 22258360455.

55406385222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243010348 + ... + 243010575.

It is an arithmetic number, because the mean of its divisors is an integer number (7290313860).

Almost surely, 2^55406385222 is an apocalyptic number.

55406385222 is an abundant number, since it is smaller than the sum of its proper divisors (61238636538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55406385222 is a wasteful number, since it uses less digits than its factorization.

55406385222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486020947.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 55406385222 in words is "fifty-five billion, four hundred six million, three hundred eighty-five thousand, two hundred twenty-two".