55005506000 has 80 divisors (see below), whose sum is σ = 140827124880. Its totient is φ = 20707942400.

The previous prime is 55005505999. The next prime is 55005506009. The reversal of 55005506000 is 60550055.

55005506000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 20184453184 + 34821052816 = 142072^2 + 186604^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005506009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774905 + ... + 842904.

It is an arithmetic number, because the mean of its divisors is an integer number (1760339061).

Almost surely, 2^55005506000 is an apocalyptic number.

55005506000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55005506000 is an abundant number, since it is smaller than the sum of its proper divisors (85821618880).

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

55005506000 is a wasteful number, since it uses less digits than its factorization.

55005506000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617849 (or 1617833 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The spelling of 55005506000 in words is "fifty-five billion, five million, five hundred six thousand".