5605009 has 4 divisors (see below), whose sum is σ = 5610816. Its totient is φ = 5599204.

The previous prime is 5604997. The next prime is 5605037. The reversal of 5605009 is 9005065.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9005065 = 5 ⋅1801013.

It is a cyclic number.

It is not a de Polignac number, because 5605009 - 2⁷ = 5604881 is a prime.

It is a super-2 number, since 2×5605009² = 62832251780162, which contains 22 as substring.

It is a Duffinian number.

5605009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5605099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069 + ... + 3514.

It is an arithmetic number, because the mean of its divisors is an integer number (1402704).

Almost surely, 2^5605009 is an apocalyptic number.

It is an amenable number.

5605009 is a deficient number, since it is larger than the sum of its proper divisors (5807).

5605009 is a wasteful number, since it uses less digits than its factorization.

5605009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 5605009 is about 2367.4900210983. The cubic root of 5605009 is about 177.6337311313.

The spelling of 5605009 in words is "five million, six hundred five thousand, nine".