5116320221 has 4 divisors (see below), whose sum is σ = 5417280252. Its totient is φ = 4815360192.

The previous prime is 5116320203. The next prime is 5116320227. The reversal of 5116320221 is 1220236115.

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 3056431225 + 2059888996 = 55285^2 + 45386^2 .

It is a cyclic number.

It is not a de Polignac number, because 5116320221 - 2²² = 5112125917 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 (5116320227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150479990 + ... + 150480023.

It is an arithmetic number, because the mean of its divisors is an integer number (1354320063).

Almost surely, 2^5116320221 is an apocalyptic number.

It is an amenable number.

5116320221 is a deficient number, since it is larger than the sum of its proper divisors (300960031).

5116320221 is a wasteful number, since it uses less digits than its factorization.

5116320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300960030.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5116320221 is about 71528.4574208056. The cubic root of 5116320221 is about 1723.1347445488.

Adding to 5116320221 its reverse (1220236115), we get a palindrome (6336556336).

The spelling of 5116320221 in words is "five billion, one hundred sixteen million, three hundred twenty thousand, two hundred twenty-one".