55459978704 has 120 divisors (see below), whose sum is σ = 168215756072. Its totient is φ = 16955827200.

The previous prime is 55459978697. The next prime is 55459978723. The reversal of 55459978704 is 40787995455.

55459978704 is a `hidden beast` number, since 5 + 545 + 9 + 9 + 7 + 87 + 0 + 4 = 666.

55459978704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4429168704 + 51030810000 = 66552^2 + 225900^2 .

It is a congruent number.

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, 199554 + ... + 388254.

Almost surely, 2^55459978704 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 55459978704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84107878036).

55459978704 is an abundant number, since it is smaller than the sum of its proper divisors (112755777368).

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

55459978704 is a wasteful number, since it uses less digits than its factorization.

55459978704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188885 (or 188876 counting only the distinct ones).

The product of its (nonzero) digits is 63504000, while the sum is 63.

The spelling of 55459978704 in words is "fifty-five billion, four hundred fifty-nine million, nine hundred seventy-eight thousand, seven hundred four".