55059396816 has 120 divisors (see below), whose sum is σ = 154312444800. Its totient is φ = 16905814016.

The previous prime is 55059396811. The next prime is 55059396823. The reversal of 55059396816 is 61869395055.

It is a happy number.

55059396816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55059396811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 609760 + ... + 694208.

It is an arithmetic number, because the mean of its divisors is an integer number (1285937040).

Almost surely, 2^55059396816 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 55059396816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77156222400).

55059396816 is an abundant number, since it is smaller than the sum of its proper divisors (99253047984).

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

55059396816 is a wasteful number, since it uses less digits than its factorization.

55059396816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84541 (or 84518 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 55059396816 in words is "fifty-five billion, fifty-nine million, three hundred ninety-six thousand, eight hundred sixteen".