5571716993 has 4 divisors (see below), whose sum is σ = 5580806868. Its totient is φ = 5562627120.

The previous prime is 5571716989. The next prime is 5571716999. The reversal of 5571716993 is 3996171755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3996171755 = 5 ⋅799234351.

It can be written as a sum of positive squares in 2 ways, for example, as 1423326529 + 4148390464 = 37727^2 + 64408^2 .

It is a cyclic number.

It is not a de Polignac number, because 5571716993 - 2² = 5571716989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5571716999) 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, 4544018 + ... + 4545243.

It is an arithmetic number, because the mean of its divisors is an integer number (1395201717).

Almost surely, 2^5571716993 is an apocalyptic number.

It is an amenable number.

5571716993 is a deficient number, since it is larger than the sum of its proper divisors (9089875).

5571716993 is an equidigital number, since it uses as much as digits as its factorization.

5571716993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9089874.

The product of its digits is 1786050, while the sum is 53.

The square root of 5571716993 is about 74643.9347368559. The cubic root of 5571716993 is about 1772.8133616418.

The spelling of 5571716993 in words is "five billion, five hundred seventy-one million, seven hundred sixteen thousand, nine hundred ninety-three".