5571243611 has 4 divisors (see below), whose sum is σ = 5638367112. Its totient is φ = 5504120112.

The previous prime is 5571243599. The next prime is 5571243637. The reversal of 5571243611 is 1163421755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1163421755 = 5 ⋅232684351.

It is a cyclic number.

It is not a de Polignac number, because 5571243611 - 2¹⁴ = 5571227227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5571243211) 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, 33561626 + ... + 33561791.

It is an arithmetic number, because the mean of its divisors is an integer number (1409591778).

Almost surely, 2^5571243611 is an apocalyptic number.

5571243611 is a deficient number, since it is larger than the sum of its proper divisors (67123501).

5571243611 is an equidigital number, since it uses as much as digits as its factorization.

5571243611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67123500.

The product of its digits is 25200, while the sum is 35.

The square root of 5571243611 is about 74640.7637353745. The cubic root of 5571243611 is about 1772.7631531989.

The spelling of 5571243611 in words is "five billion, five hundred seventy-one million, two hundred forty-three thousand, six hundred eleven".