5227167821 has 2 divisors, whose sum is σ = 5227167822. Its totient is φ = 5227167820.

The previous prime is 5227167809. The next prime is 5227167823. The reversal of 5227167821 is 1287617225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4734816100 + 492351721 = 68810^2 + 22189^2 .

It is a cyclic number.

It is not a de Polignac number, because 5227167821 - 2¹⁰ = 5227166797 is a prime.

Together with 5227167823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5227167823) 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 as a sum of consecutive naturals, namely, 2613583910 + 2613583911.

It is an arithmetic number, because the mean of its divisors is an integer number (2613583911).

Almost surely, 2^5227167821 is an apocalyptic number.

It is an amenable number.

5227167821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5227167821 is an equidigital number, since it uses as much as digits as its factorization.

5227167821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 41.

The square root of 5227167821 is about 72299.1550503877. The cubic root of 5227167821 is about 1735.4901289775.

The spelling of 5227167821 in words is "five billion, two hundred twenty-seven million, one hundred sixty-seven thousand, eight hundred twenty-one".