5605505609 has 16 divisors (see below), whose sum is σ = 6593952960. Its totient is φ = 4709952000.

The previous prime is 5605505573. The next prime is 5605505639. The reversal of 5605505609 is 9065055065.

It is a cyclic number.

It is not a de Polignac number, because 5605505609 - 2¹² = 5605501513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5605505639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318512 + ... + 335649.

It is an arithmetic number, because the mean of its divisors is an integer number (412122060).

Almost surely, 2^5605505609 is an apocalyptic number.

It is an amenable number.

5605505609 is a deficient number, since it is larger than the sum of its proper divisors (988447351).

5605505609 is a wasteful number, since it uses less digits than its factorization.

5605505609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654232.

The product of its (nonzero) digits is 202500, while the sum is 41.

The square root of 5605505609 is about 74869.9245959284. The cubic root of 5605505609 is about 1776.3897714756.

The spelling of 5605505609 in words is "five billion, six hundred five million, five hundred five thousand, six hundred nine".