5605105561 has 8 divisors (see below), whose sum is σ = 6115291200. Its totient is φ = 5095025040.

The previous prime is 5605105511. The next prime is 5605105591. The reversal of 5605105561 is 1655015065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5605105561 - 2¹³ = 5605097369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5605105501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121260 + ... + 160978.

It is an arithmetic number, because the mean of its divisors is an integer number (764411400).

Almost surely, 2^5605105561 is an apocalyptic number.

It is an amenable number.

5605105561 is a deficient number, since it is larger than the sum of its proper divisors (510185639).

5605105561 is a wasteful number, since it uses less digits than its factorization.

5605105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52559.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 5605105561 is about 74867.2529280993. The cubic root of 5605105561 is about 1776.3475119465.

The spelling of 5605105561 in words is "five billion, six hundred five million, one hundred five thousand, five hundred sixty-one".