55443235563 has 16 divisors (see below), whose sum is σ = 83530300800. Its totient is φ = 36335678760.

The previous prime is 55443235541. The next prime is 55443235577. The reversal of 55443235563 is 36553234455.

55443235563 is a `hidden beast` number, since 5 + 54 + 4 + 3 + 2 + 35 + 563 = 666.

It is not a de Polignac number, because 55443235563 - 2²¹ = 55441138411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55443235063) 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 15 ways as a sum of consecutive naturals, for example, 17400553 + ... + 17403738.

It is an arithmetic number, because the mean of its divisors is an integer number (5220643800).

Almost surely, 2^55443235563 is an apocalyptic number.

55443235563 is a deficient number, since it is larger than the sum of its proper divisors (28087065237).

55443235563 is a wasteful number, since it uses less digits than its factorization.

55443235563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34804359 (or 34804353 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 45.

The spelling of 55443235563 in words is "fifty-five billion, four hundred forty-three million, two hundred thirty-five thousand, five hundred sixty-three".