55112732561056 has 96 divisors (see below), whose sum is σ = 115497923079168. Its totient is φ = 25797227151360.

The previous prime is 55112732561017. The next prime is 55112732561119. The reversal of 55112732561056 is 65016523721155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665876291 + ... + 1665909373.

It is an arithmetic number, because the mean of its divisors is an integer number (1203103365408).

Almost surely, 2^{55112732561056} 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 55112732561056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57748961539584).

55112732561056 is an abundant number, since it is smaller than the sum of its proper divisors (60385190518112).

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

55112732561056 is a wasteful number, since it uses less digits than its factorization.

55112732561056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49334 (or 49326 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 55112732561056 in words is "fifty-five trillion, one hundred twelve billion, seven hundred thirty-two million, five hundred sixty-one thousand, fifty-six".