55191044322 has 18 divisors (see below), whose sum is σ = 119582755617. Its totient is φ = 18396682536.

The previous prime is 55191044317. The next prime is 55191044351. The reversal of 55191044322 is 22344019155.

55191044322 is a `hidden beast` number, since 5 + 5 + 191 + 0 + 443 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51755795001 + 3435249321 = 227499^2 + 58611^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166119.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 969028 + ... + 1024400.

Almost surely, 2^55191044322 is an apocalyptic number.

55191044322 is an abundant number, since it is smaller than the sum of its proper divisors (64391711295).

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

55191044322 is an frugal number, since it uses more digits than its factorization.

55191044322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110754 (or 55378 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 55191044322 in words is "fifty-five billion, one hundred ninety-one million, forty-four thousand, three hundred twenty-two".