5509139 has 4 divisors (see below), whose sum is σ = 5833224. Its totient is φ = 5185056.

The previous prime is 5509111. The next prime is 5509151. The reversal of 5509139 is 9319055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9319055 = 5 ⋅1863811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5509139 is a prime.

It is a super-2 number, since 2×5509139² = 60701225042642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5509039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162017 + ... + 162050.

It is an arithmetic number, because the mean of its divisors is an integer number (1458306).

Almost surely, 2^5509139 is an apocalyptic number.

5509139 is a deficient number, since it is larger than the sum of its proper divisors (324085).

5509139 is a wasteful number, since it uses less digits than its factorization.

5509139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324084.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 5509139 is about 2347.1555125300. The cubic root of 5509139 is about 176.6151319168.

The spelling of 5509139 in words is "five million, five hundred nine thousand, one hundred thirty-nine".