54991842120 has 192 divisors, whose sum is σ = 188430091200. Its totient is φ = 13870517760.

The previous prime is 54991842119. The next prime is 54991842127. The reversal of 54991842120 is 2124819945.

It is a happy number.

54991842120 is a `hidden beast` number, since 549 + 9 + 1 + 84 + 2 + 1 + 20 = 666.

54991842120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (54991842127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4515159 + ... + 4527321.

It is an arithmetic number, because the mean of its divisors is an integer number (981406725).

Almost surely, 2^54991842120 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 54991842120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94215045600).

54991842120 is an abundant number, since it is smaller than the sum of its proper divisors (133438249080).

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

54991842120 is a wasteful number, since it uses less digits than its factorization.

54991842120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12860 (or 12853 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 54991842120 in words is "fifty-four billion, nine hundred ninety-one million, eight hundred forty-two thousand, one hundred twenty".