55055492800 has 672 divisors, whose sum is σ = 181344393216. Its totient is φ = 15925248000.

The previous prime is 55055492729. The next prime is 55055492803. The reversal of 55055492800 is 829455055.

It is a super-2 number, since 2×55055492800² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55055492803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 203156665 + ... + 203156935.

It is an arithmetic number, because the mean of its divisors is an integer number (269857728).

Almost surely, 2^55055492800 is an apocalyptic number.

55055492800 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 55055492800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90672196608).

55055492800 is an abundant number, since it is smaller than the sum of its proper divisors (126288900416).

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

55055492800 is a wasteful number, since it uses less digits than its factorization.

55055492800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 55055492800 in words is "fifty-five billion, fifty-five million, four hundred ninety-two thousand, eight hundred".