55143730000 has 100 divisors (see below), whose sum is σ = 137815984768. Its totient is φ = 21345840000.

The previous prime is 55143729989. The next prime is 55143730079. The reversal of 55143730000 is 3734155.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 221059 + ... + 398941.

Almost surely, 2^55143730000 is an apocalyptic number.

55143730000 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 55143730000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68907992384).

55143730000 is an abundant number, since it is smaller than the sum of its proper divisors (82672254768).

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

55143730000 is a wasteful number, since it uses less digits than its factorization.

55143730000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177942 (or 177921 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The spelling of 55143730000 in words is "fifty-five billion, one hundred forty-three million, seven hundred thirty thousand".