5571683881 has 4 divisors (see below), whose sum is σ = 5620990932. Its totient is φ = 5522376832.

The previous prime is 5571683879. The next prime is 5571683947. The reversal of 5571683881 is 1883861755.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 218566656 + 5353117225 = 14784^2 + 73165^2 .

It is a cyclic number.

It is not a de Polignac number, because 5571683881 - 2¹ = 5571683879 is a prime.

It is a super-2 number, since 2×5571683881² = 62087322539590444322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5571683851) 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, 24653356 + ... + 24653581.

It is an arithmetic number, because the mean of its divisors is an integer number (1405247733).

Almost surely, 2^5571683881 is an apocalyptic number.

It is an amenable number.

5571683881 is a deficient number, since it is larger than the sum of its proper divisors (49307051).

5571683881 is a wasteful number, since it uses less digits than its factorization.

5571683881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49307050.

The product of its digits is 1612800, while the sum is 52.

The square root of 5571683881 is about 74643.7129368576. The cubic root of 5571683881 is about 1772.8098497673.

The spelling of 5571683881 in words is "five billion, five hundred seventy-one million, six hundred eighty-three thousand, eight hundred eighty-one".