5605540605 has 80 divisors (see below), whose sum is σ = 11575111680. Its totient is φ = 2542192128.

The previous prime is 5605540597. The next prime is 5605540609. The reversal of 5605540605 is 5060455065.

It is a happy number.

5605540605 is a `hidden beast` number, since 5 + 6 + 0 + 5 + 5 + 40 + 605 = 666.

5605540605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5605540605 - 2³ = 5605540597 is a prime.

It is a super-3 number, since 3×5605540605³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5605540605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605540609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 352261 + ... + 367829.

It is an arithmetic number, because the mean of its divisors is an integer number (144688896).

Almost surely, 2^5605540605 is an apocalyptic number.

It is an amenable number.

5605540605 is an abundant number, since it is smaller than the sum of its proper divisors (5969571075).

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

5605540605 is a wasteful number, since it uses less digits than its factorization.

5605540605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15720 (or 15711 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 5605540605 is about 74870.1583075660. The cubic root of 5605540605 is about 1776.3934682225.

The spelling of 5605540605 in words is "five billion, six hundred five million, five hundred forty thousand, six hundred five".