55550055055506 has 64 divisors (see below), whose sum is σ = 129887790437376. Its totient is φ = 15666290481600.

The previous prime is 55550055055459. The next prime is 55550055055519. The reversal of 55550055055506 is 60555055005555.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494460580 + ... + 494572911.

It is an arithmetic number, because the mean of its divisors is an integer number (2029496725584).

Almost surely, 2^{55550055055506} is an apocalyptic number.

55550055055506 is an abundant number, since it is smaller than the sum of its proper divisors (74337735381870).

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

55550055055506 is a wasteful number, since it uses less digits than its factorization.

55550055055506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989033567.

The product of its (nonzero) digits is 11718750, while the sum is 51.

The spelling of 55550055055506 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, fifty-five thousand, five hundred six".