5509239 has 4 divisors (see below), whose sum is σ = 7345656. Its totient is φ = 3672824.

The previous prime is 5509219. The next prime is 5509249. The reversal of 5509239 is 9329055.

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 5509239 - 2⁷ = 5509111 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5509219) 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, 918204 + ... + 918209.

It is an arithmetic number, because the mean of its divisors is an integer number (1836414).

Almost surely, 2^5509239 is an apocalyptic number.

5509239 is a deficient number, since it is larger than the sum of its proper divisors (1836417).

5509239 is a wasteful number, since it uses less digits than its factorization.

5509239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836416.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 5509239 is about 2347.1768148139. The cubic root of 5509239 is about 176.6162005294.

The spelling of 5509239 in words is "five million, five hundred nine thousand, two hundred thirty-nine".