5549539 has 4 divisors (see below), whose sum is σ = 5841640. Its totient is φ = 5257440.

The previous prime is 5549483. The next prime is 5549561. The reversal of 5549539 is 9359455.

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 5549539 - 2²¹ = 3452387 is a prime.

It is a super-2 number, since 2×5549539² = 61594766225042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5549569) 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, 146022 + ... + 146059.

It is an arithmetic number, because the mean of its divisors is an integer number (1460410).

Almost surely, 2^5549539 is an apocalyptic number.

5549539 is a deficient number, since it is larger than the sum of its proper divisors (292101).

5549539 is a wasteful number, since it uses less digits than its factorization.

5549539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292100.

The product of its digits is 121500, while the sum is 40.

The square root of 5549539 is about 2355.7459540451. The cubic root of 5549539 is about 177.0458029931.

It can be divided in two parts, 55 and 49539, that added together give a palindrome (49594).

The spelling of 5549539 in words is "five million, five hundred forty-nine thousand, five hundred thirty-nine".