55044918560 has 192 divisors, whose sum is σ = 138279052800. Its totient is φ = 20671967232.

The previous prime is 55044918547. The next prime is 55044918571. The reversal of 55044918560 is 6581944055.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37727111 + ... + 37728569.

It is an arithmetic number, because the mean of its divisors is an integer number (720203400).

Almost surely, 2^55044918560 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 55044918560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69139526400).

55044918560 is an abundant number, since it is smaller than the sum of its proper divisors (83234134240).

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

55044918560 is a wasteful number, since it uses less digits than its factorization.

55044918560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 55044918560 in words is "fifty-five billion, forty-four million, nine hundred eighteen thousand, five hundred sixty".