55423170403200 has 288 divisors, whose sum is σ = 197796091077000. Its totient is φ = 14777007206400.

The previous prime is 55423170403141. The next prime is 55423170403217. The reversal of 55423170403200 is 230407132455.

55423170403200 is a `hidden beast` number, since 5 + 5 + 42 + 3 + 1 + 7 + 0 + 403 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 35 ways as a sum of consecutive naturals, for example, 172956726 + ... + 173276874.

Almost surely, 2^{55423170403200} is an apocalyptic number.

55423170403200 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 55423170403200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98898045538500).

55423170403200 is an abundant number, since it is smaller than the sum of its proper divisors (142372920673800).

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

55423170403200 is a wasteful number, since it uses less digits than its factorization.

55423170403200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326190 (or 326170 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

Adding to 55423170403200 its reverse (230407132455), we get a palindrome (55653577535655).

The spelling of 55423170403200 in words is "fifty-five trillion, four hundred twenty-three billion, one hundred seventy million, four hundred three thousand, two hundred".