55554143221300 has 144 divisors (see below), whose sum is σ = 124382303648064. Its totient is φ = 21525033600000.

The previous prime is 55554143221273. The next prime is 55554143221331. The reversal of 55554143221300 is 312234145555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254842350 + ... + 255060250.

It is an arithmetic number, because the mean of its divisors is an integer number (863765997556).

Almost surely, 2^{55554143221300} is an apocalyptic number.

55554143221300 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 55554143221300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62191151824032).

55554143221300 is an abundant number, since it is smaller than the sum of its proper divisors (68828160426764).

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

55554143221300 is a wasteful number, since it uses less digits than its factorization.

55554143221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218450 (or 218443 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 55554143221300 its reverse (312234145555), we get a palindrome (55866377366855).

The spelling of 55554143221300 in words is "fifty-five trillion, five hundred fifty-four billion, one hundred forty-three million, two hundred twenty-one thousand, three hundred".