55042368420 has 96 divisors (see below), whose sum is σ = 166110997248. Its totient is φ = 13537700352.

The previous prime is 55042368391. The next prime is 55042368523. The reversal of 55042368420 is 2486324055.

55042368420 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 (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 936337 + ... + 993383.

It is an arithmetic number, because the mean of its divisors is an integer number (1730322888).

Almost surely, 2^55042368420 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 55042368420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83055498624).

55042368420 is an abundant number, since it is smaller than the sum of its proper divisors (111068628828).

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

55042368420 is a wasteful number, since it uses less digits than its factorization.

55042368420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58309 (or 58307 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 55042368420 in words is "fifty-five billion, forty-two million, three hundred sixty-eight thousand, four hundred twenty".