55520612205 has 24 divisors (see below), whose sum is σ = 94365836832. Its totient is φ = 27869167872.

The previous prime is 55520612197. The next prime is 55520612207. The reversal of 55520612205 is 50221602555.

It is not a de Polignac number, because 55520612205 - 2³ = 55520612197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520612207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6399427 + ... + 6408096.

It is an arithmetic number, because the mean of its divisors is an integer number (3931909868).

Almost surely, 2^55520612205 is an apocalyptic number.

It is an amenable number.

55520612205 is a deficient number, since it is larger than the sum of its proper divisors (38845224627).

55520612205 is a wasteful number, since it uses less digits than its factorization.

55520612205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807565 (or 12807548 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 55520612205 in words is "fifty-five billion, five hundred twenty million, six hundred twelve thousand, two hundred five".