55508550912 has 90 divisors (see below), whose sum is σ = 165516516858. Its totient is φ = 18502843392.

The previous prime is 55508550883. The next prime is 55508550917. The reversal of 55508550912 is 21905580555.

55508550912 is a `hidden beast` number, since 5 + 5 + 5 + 0 + 8 + 550 + 91 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48795042816 + 6713508096 = 220896^2 + 81936^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55508550917) 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 9 ways as a sum of consecutive naturals, for example, 1317723 + ... + 1359194.

Almost surely, 2^55508550912 is an apocalyptic number.

It is an amenable number.

55508550912 is an abundant number, since it is smaller than the sum of its proper divisors (110007965946).

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

55508550912 is an equidigital number, since it uses as much as digits as its factorization.

55508550912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676945 (or 2676922 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 45.

The spelling of 55508550912 in words is "fifty-five billion, five hundred eight million, five hundred fifty thousand, nine hundred twelve".