55081555200 has 1080 divisors, whose sum is σ = 238843754688. Its totient is φ = 12262440960.

The previous prime is 55081555189. The next prime is 55081555219. The reversal of 55081555200 is 255518055.

55081555200 is a `hidden beast` number, since 5 + 5 + 0 + 81 + 55 + 520 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 156038224 + ... + 156038576.

Almost surely, 2^55081555200 is an apocalyptic number.

55081555200 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 55081555200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119421877344).

55081555200 is an abundant number, since it is smaller than the sum of its proper divisors (183762199488).

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

55081555200 is a wasteful number, since it uses less digits than its factorization.

55081555200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 36.

The spelling of 55081555200 in words is "fifty-five billion, eighty-one million, five hundred fifty-five thousand, two hundred".