5192821 has 2 divisors, whose sum is σ = 5192822. Its totient is φ = 5192820.

The previous prime is 5192819. The next prime is 5192879. The reversal of 5192821 is 1282915.

5192821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5062500 + 130321 = 2250^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 5192821 - 2¹ = 5192819 is a prime.

Together with 5192819, it forms a pair of twin primes.

It is a Chen prime.

5192821 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5192821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5192801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2596410 + 2596411.

It is an arithmetic number, because the mean of its divisors is an integer number (2596411).

Almost surely, 2^5192821 is an apocalyptic number.

It is an amenable number.

5192821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5192821 is an equidigital number, since it uses as much as digits as its factorization.

5192821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 28.

The square root of 5192821 is about 2278.7762066513. The cubic root of 5192821 is about 173.1680570355.

The spelling of 5192821 in words is "five million, one hundred ninety-two thousand, eight hundred twenty-one".