5565539 has 4 divisors (see below), whose sum is σ = 6360624. Its totient is φ = 4770456.

The previous prime is 5565509. The next prime is 5565551. The reversal of 5565539 is 9355655.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5565539 - 2⁸ = 5565283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5565509) 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, 397532 + ... + 397545.

It is an arithmetic number, because the mean of its divisors is an integer number (1590156).

Almost surely, 2^5565539 is an apocalyptic number.

5565539 is a deficient number, since it is larger than the sum of its proper divisors (795085).

5565539 is an equidigital number, since it uses as much as digits as its factorization.

5565539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795084.

The product of its digits is 101250, while the sum is 38.

The square root of 5565539 is about 2359.1394617530. The cubic root of 5565539 is about 177.2157879731.

The spelling of 5565539 in words is "five million, five hundred sixty-five thousand, five hundred thirty-nine".