55255530000 has 200 divisors, whose sum is σ = 194589036576. Its totient is φ = 13395200000.

The previous prime is 55255529963. The next prime is 55255530017. The reversal of 55255530000 is 3555255.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 55255530000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 246280 + ... + 413720.

Almost surely, 2^55255530000 is an apocalyptic number.

55255530000 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 55255530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97294518288).

55255530000 is an abundant number, since it is smaller than the sum of its proper divisors (139333506576).

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

55255530000 is a wasteful number, since it uses less digits than its factorization.

55255530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167483 (or 167462 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 30.

The spelling of 55255530000 in words is "fifty-five billion, two hundred fifty-five million, five hundred thirty thousand".