55878220575200 has 72 divisors (see below), whose sum is σ = 138334011837840. Its totient is φ = 22036481331200.

The previous prime is 55878220575157. The next prime is 55878220575209. The reversal of 55878220575200 is 257502287855.

It is a happy number.

55878220575200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55878220575209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 491828945 + ... + 491942544.

It is an arithmetic number, because the mean of its divisors is an integer number (1921305719970).

Almost surely, 2^{55878220575200} is an apocalyptic number.

55878220575200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55878220575200 is an abundant number, since it is smaller than the sum of its proper divisors (82455791262640).

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

55878220575200 is a wasteful number, since it uses less digits than its factorization.

55878220575200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983771580 (or 983771567 counting only the distinct ones).

The product of its (nonzero) digits is 15680000, while the sum is 56.

The spelling of 55878220575200 in words is "fifty-five trillion, eight hundred seventy-eight billion, two hundred twenty million, five hundred seventy-five thousand, two hundred".