55504002101200 has 120 divisors (see below), whose sum is σ = 134715224004192. Its totient is φ = 21974399976960.

The previous prime is 55504002101131. The next prime is 55504002101279. The reversal of 55504002101200 is 210120040555.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47227107 + ... + 48388093.

Almost surely, 2^{55504002101200} is an apocalyptic number.

55504002101200 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 55504002101200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67357612002096).

55504002101200 is an abundant number, since it is smaller than the sum of its proper divisors (79211221902992).

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

55504002101200 is a wasteful number, since it uses less digits than its factorization.

55504002101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162229 (or 1162218 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 55504002101200 its reverse (210120040555), we get a palindrome (55714122141755).

The spelling of 55504002101200 in words is "fifty-five trillion, five hundred four billion, two million, one hundred one thousand, two hundred".