55605505005 has 12 divisors (see below), whose sum is σ = 96382875420. Its totient is φ = 29656269312.

The previous prime is 55605505001. The next prime is 55605505057. The reversal of 55605505005 is 50050550655.

55605505005 is a `hidden beast` number, since 5 + 56 + 0 + 550 + 50 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20944746729 + 34660758276 = 144723^2 + 186174^2 .

It is not a de Polignac number, because 55605505005 - 2² = 55605505001 is a prime.

It is a super-2 number, since 2×55605505005² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605505001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617838900 + ... + 617838989.

It is an arithmetic number, because the mean of its divisors is an integer number (8031906285).

Almost surely, 2^55605505005 is an apocalyptic number.

It is an amenable number.

55605505005 is a deficient number, since it is larger than the sum of its proper divisors (40777370415).

55605505005 is a wasteful number, since it uses less digits than its factorization.

55605505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235677900 (or 1235677897 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 55605505005 in words is "fifty-five billion, six hundred five million, five hundred five thousand, five".