52254221 has 2 divisors, whose sum is σ = 52254222. Its totient is φ = 52254220.

The previous prime is 52254149. The next prime is 52254233. The reversal of 52254221 is 12245225.

52254221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27144100 + 25110121 = 5210^2 + 5011^2 .

It is a cyclic number.

It is not a de Polignac number, because 52254221 - 2¹⁴ = 52237837 is a prime.

It is a super-2 number, since 2×52254221² = 5461007224633682, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52254121) 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, 26127110 + 26127111.

It is an arithmetic number, because the mean of its divisors is an integer number (26127111).

Almost surely, 2^52254221 is an apocalyptic number.

It is an amenable number.

52254221 is a deficient number, since it is larger than the sum of its proper divisors (1).

52254221 is an equidigital number, since it uses as much as digits as its factorization.

52254221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600, while the sum is 23.

The square root of 52254221 is about 7228.7081141792. The cubic root of 52254221 is about 373.8583852875.

Adding to 52254221 its reverse (12245225), we get a palindrome (64499446).

The spelling of 52254221 in words is "fifty-two million, two hundred fifty-four thousand, two hundred twenty-one".