5516571493 has 2 divisors, whose sum is σ = 5516571494. Its totient is φ = 5516571492.

The previous prime is 5516571457. The next prime is 5516571527. The reversal of 5516571493 is 3941756155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5379048964 + 137522529 = 73342^2 + 11727^2 .

It is a cyclic number.

It is not a de Polignac number, because 5516571493 - 2²⁹ = 4979700581 is a prime.

It is a super-3 number, since 3×5516571493³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5516571793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2758285746 + 2758285747.

It is an arithmetic number, because the mean of its divisors is an integer number (2758285747).

Almost surely, 2^5516571493 is an apocalyptic number.

It is an amenable number.

5516571493 is a deficient number, since it is larger than the sum of its proper divisors (1).

5516571493 is an equidigital number, since it uses as much as digits as its factorization.

5516571493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567000, while the sum is 46.

The square root of 5516571493 is about 74273.6258237068. The cubic root of 5516571493 is about 1766.9452126403.

The spelling of 5516571493 in words is "five billion, five hundred sixteen million, five hundred seventy-one thousand, four hundred ninety-three".