55374545728 has 112 divisors (see below), whose sum is σ = 115583086080. Its totient is φ = 26290814976.

The previous prime is 55374545627. The next prime is 55374545749. The reversal of 55374545728 is 82754547355.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72008128 + ... + 72008896.

It is an arithmetic number, because the mean of its divisors is an integer number (1031991840).

Almost surely, 2^55374545728 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 55374545728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57791543040).

55374545728 is an abundant number, since it is smaller than the sum of its proper divisors (60208540352).

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

55374545728 is a wasteful number, since it uses less digits than its factorization.

55374545728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1502 counting only the distinct ones).

The product of its digits is 23520000, while the sum is 55.

The spelling of 55374545728 in words is "fifty-five billion, three hundred seventy-four million, five hundred forty-five thousand, seven hundred twenty-eight".