5581611079 has 4 divisors (see below), whose sum is σ = 6089030280. Its totient is φ = 5074191880.

The previous prime is 5581611053. The next prime is 5581611109. The reversal of 5581611079 is 9701161855.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5581611079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581612079) 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, 253709584 + ... + 253709605.

It is an arithmetic number, because the mean of its divisors is an integer number (1522257570).

Almost surely, 2^5581611079 is an apocalyptic number.

5581611079 is a deficient number, since it is larger than the sum of its proper divisors (507419201).

5581611079 is a wasteful number, since it uses less digits than its factorization.

5581611079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507419200.

The product of its (nonzero) digits is 75600, while the sum is 43.

The square root of 5581611079 is about 74710.1805579400. The cubic root of 5581611079 is about 1773.8621105022.

The spelling of 5581611079 in words is "five billion, five hundred eighty-one million, six hundred eleven thousand, seventy-nine".