55120533200 has 30 divisors (see below), whose sum is σ = 132427081974. Its totient is φ = 22048213120.

The previous prime is 55120533187. The next prime is 55120533257. The reversal of 55120533200 is 233502155.

It can be written as a sum of positive squares in 3 ways, for example, as 6926234176 + 48194299024 = 83224^2 + 219532^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55120533200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68900267 + ... + 68901066.

Almost surely, 2^55120533200 is an apocalyptic number.

55120533200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55120533200 is an abundant number, since it is smaller than the sum of its proper divisors (77306548774).

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

55120533200 is a wasteful number, since it uses less digits than its factorization.

55120533200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137801351 (or 137801340 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The spelling of 55120533200 in words is "fifty-five billion, one hundred twenty million, five hundred thirty-three thousand, two hundred".