55443871008 has 192 divisors, whose sum is σ = 169047244800. Its totient is φ = 17658051840.

The previous prime is 55443870997. The next prime is 55443871013. The reversal of 55443871008 is 80017834455.

55443871008 is a `hidden beast` number, since 5 + 544 + 38 + 71 + 0 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2102835 + ... + 2129037.

It is an arithmetic number, because the mean of its divisors is an integer number (880454400).

Almost surely, 2^55443871008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55443871008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84523622400).

55443871008 is an abundant number, since it is smaller than the sum of its proper divisors (113603373792).

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

55443871008 is a wasteful number, since it uses less digits than its factorization.

55443871008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26332 (or 26318 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 55443871008 in words is "fifty-five billion, four hundred forty-three million, eight hundred seventy-one thousand, eight".