180055500 has 192 divisors, whose sum is σ = 581188608. Its totient is φ = 43084800.

The previous prime is 180055493. The next prime is 180055501. The reversal of 180055500 is 5550081.

180055500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (180055501) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 586347 + ... + 586653.

It is an arithmetic number, because the mean of its divisors is an integer number (3027024).

Almost surely, 2^180055500 is an apocalyptic number.

180055500 is a gapful number since it is divisible by the number (10) 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 180055500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290594304).

180055500 is an abundant number, since it is smaller than the sum of its proper divisors (401133108).

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

180055500 is a wasteful number, since it uses less digits than its factorization.

180055500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 180055500 is about 13418.4760684662. The cubic root of 180055500 is about 564.6796419205.

The spelling of 180055500 in words is "one hundred eighty million, fifty-five thousand, five hundred".