52362221 has 2 divisors, whose sum is σ = 52362222. Its totient is φ = 52362220.

The previous prime is 52362209. The next prime is 52362223. The reversal of 52362221 is 12226325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43428100 + 8934121 = 6590^2 + 2989^2 .

It is a cyclic number.

It is not a de Polignac number, because 52362221 - 2¹⁴ = 52345837 is a prime.

Together with 52362223, 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 (52362223) 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 as a sum of consecutive naturals, namely, 26181110 + 26181111.

It is an arithmetic number, because the mean of its divisors is an integer number (26181111).

Almost surely, 2^52362221 is an apocalyptic number.

It is an amenable number.

52362221 is a deficient number, since it is larger than the sum of its proper divisors (1).

52362221 is an equidigital number, since it uses as much as digits as its factorization.

52362221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 52362221 is about 7236.1744727446. The cubic root of 52362221 is about 374.1157738750.

Adding to 52362221 its reverse (12226325), we get a palindrome (64588546).

The spelling of 52362221 in words is "fifty-two million, three hundred sixty-two thousand, two hundred twenty-one".