55120707552000 has 288 divisors, whose sum is σ = 183131074473984. Its totient is φ = 14695030272000.

The previous prime is 55120707551969. The next prime is 55120707552089. The reversal of 55120707552000 is 25570702155.

It is a self number, because there is not a number n which added to its sum of digits gives 55120707552000.

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, 378839265 + ... + 378984735.

It is an arithmetic number, because the mean of its divisors is an integer number (635871786368).

Almost surely, 2^{55120707552000} is an apocalyptic number.

55120707552000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55120707552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91565537236992).

55120707552000 is an abundant number, since it is smaller than the sum of its proper divisors (128010366921984).

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

55120707552000 is a wasteful number, since it uses less digits than its factorization.

55120707552000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149452 (or 149428 counting only the distinct ones).

The product of its (nonzero) digits is 122500, while the sum is 39.

The spelling of 55120707552000 in words is "fifty-five trillion, one hundred twenty billion, seven hundred seven million, five hundred fifty-two thousand".