55023644100 has 144 divisors (see below), whose sum is σ = 163242676800. Its totient is φ = 14301235200.

The previous prime is 55023644089. The next prime is 55023644183. The reversal of 55023644100 is 144632055.

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

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 47 ways as a sum of consecutive naturals, for example, 20896384 + ... + 20899016.

It is an arithmetic number, because the mean of its divisors is an integer number (1133629700).

Almost surely, 2^55023644100 is an apocalyptic number.

55023644100 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 55023644100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81621338400).

55023644100 is an abundant number, since it is smaller than the sum of its proper divisors (108219032700).

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

55023644100 is a wasteful number, since it uses less digits than its factorization.

55023644100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390 (or 4383 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 55023644100 in words is "fifty-five billion, twenty-three million, six hundred forty-four thousand, one hundred".