55447228799100 has 432 divisors, whose sum is σ = 177531249272832. Its totient is φ = 14472248555520.

The previous prime is 55447228799093. The next prime is 55447228799111. The reversal of 55447228799100 is 199782274455.

55447228799100 is a `hidden beast` number, since 5 + 5 + 4 + 472 + 2 + 8 + 79 + 91 + 0 + 0 = 666.

55447228799100 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3844354489 + ... + 3844368911.

Almost surely, 2^{55447228799100} is an apocalyptic number.

55447228799100 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 55447228799100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88765624636416).

55447228799100 is an abundant number, since it is smaller than the sum of its proper divisors (122084020473732).

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

55447228799100 is a wasteful number, since it uses less digits than its factorization.

55447228799100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15026 (or 15016 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 63.

The spelling of 55447228799100 in words is "fifty-five trillion, four hundred forty-seven billion, two hundred twenty-eight million, seven hundred ninety-nine thousand, one hundred".