5580665 has 4 divisors (see below), whose sum is σ = 6696804. Its totient is φ = 4464528.

The previous prime is 5580649. The next prime is 5580667. The reversal of 5580665 is 5660855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2408704 + 3171961 = 1552^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 5580665 - 2⁴ = 5580649 is a prime.

It is a super-2 number, since 2×5580665² = 62287643684450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5580667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558062 + ... + 558071.

It is an arithmetic number, because the mean of its divisors is an integer number (1674201).

Almost surely, 2^5580665 is an apocalyptic number.

It is an amenable number.

5580665 is a deficient number, since it is larger than the sum of its proper divisors (1116139).

5580665 is a wasteful number, since it uses less digits than its factorization.

5580665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116138.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 5580665 is about 2362.3431164841. The cubic root of 5580665 is about 177.3761882062.

The spelling of 5580665 in words is "five million, five hundred eighty thousand, six hundred sixty-five".