54450557728 has 144 divisors (see below), whose sum is σ = 133633118304. Its totient is φ = 21697751040.

The previous prime is 54450557717. The next prime is 54450557741. The reversal of 54450557728 is 82775505445.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2200143 + ... + 2224753.

It is an arithmetic number, because the mean of its divisors is an integer number (928007766).

Almost surely, 2^54450557728 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 54450557728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66816559152).

54450557728 is an abundant number, since it is smaller than the sum of its proper divisors (79182560576).

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

54450557728 is a wasteful number, since it uses less digits than its factorization.

54450557728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24735 (or 24720 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 52.

The spelling of 54450557728 in words is "fifty-four billion, four hundred fifty million, five hundred fifty-seven thousand, seven hundred twenty-eight".