55442282112 has 256 divisors, whose sum is σ = 196851840000. Its totient is φ = 15006809088.

The previous prime is 55442282107. The next prime is 55442282173. The reversal of 55442282112 is 21128224455.

55442282112 is a `hidden beast` number, since 5 + 544 + 22 + 82 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 399339 + ... + 519957.

It is an arithmetic number, because the mean of its divisors is an integer number (768952500).

Almost surely, 2^55442282112 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 55442282112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98425920000).

55442282112 is an abundant number, since it is smaller than the sum of its proper divisors (141409557888).

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

55442282112 is a wasteful number, since it uses less digits than its factorization.

55442282112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120668 (or 120650 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The spelling of 55442282112 in words is "fifty-five billion, four hundred forty-two million, two hundred eighty-two thousand, one hundred twelve".