5581493539 has 4 divisors (see below), whose sum is σ = 5614915824. Its totient is φ = 5548071256.

The previous prime is 5581493501. The next prime is 5581493581. The reversal of 5581493539 is 9353941855.

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 5581493539 - 2¹³ = 5581485347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5581493039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16710892 + ... + 16711225.

It is an arithmetic number, because the mean of its divisors is an integer number (1403728956).

Almost surely, 2^5581493539 is an apocalyptic number.

5581493539 is a deficient number, since it is larger than the sum of its proper divisors (33422285).

5581493539 is a wasteful number, since it uses less digits than its factorization.

5581493539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33422284.

The product of its digits is 2916000, while the sum is 52.

The square root of 5581493539 is about 74709.3939140186. The cubic root of 5581493539 is about 1773.8496588275.

The spelling of 5581493539 in words is "five billion, five hundred eighty-one million, four hundred ninety-three thousand, five hundred thirty-nine".