55442655888 has 160 divisors (see below), whose sum is σ = 152390246400. Its totient is φ = 17331714048.

The previous prime is 55442655881. The next prime is 55442655893. The reversal of 55442655888 is 88855624455.

It is not an unprimeable number, because it can be changed into a prime (55442655881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31199256 + ... + 31201032.

It is an arithmetic number, because the mean of its divisors is an integer number (952439040).

Almost surely, 2^55442655888 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 55442655888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76195123200).

55442655888 is an abundant number, since it is smaller than the sum of its proper divisors (96947590512).

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

55442655888 is a wasteful number, since it uses less digits than its factorization.

55442655888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2343 counting only the distinct ones).

The product of its digits is 61440000, while the sum is 60.

The spelling of 55442655888 in words is "fifty-five billion, four hundred forty-two million, six hundred fifty-five thousand, eight hundred eighty-eight".