53105243 has 2 divisors, whose sum is σ = 53105244. Its totient is φ = 53105242.

The previous prime is 53105207. The next prime is 53105257. The reversal of 53105243 is 34250135.

53105243 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 is a cyclic number.

It is not a de Polignac number, because 53105243 - 2⁶ = 53105179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53105203) 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, 26552621 + 26552622.

It is an arithmetic number, because the mean of its divisors is an integer number (26552622).

Almost surely, 2^53105243 is an apocalyptic number.

53105243 is a deficient number, since it is larger than the sum of its proper divisors (1).

53105243 is an equidigital number, since it uses as much as digits as its factorization.

53105243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53105243 is about 7287.3344235049. The cubic root of 53105243 is about 375.8770417136.

Adding to 53105243 its reverse (34250135), we get a palindrome (87355378).

The spelling of 53105243 in words is "fifty-three million, one hundred five thousand, two hundred forty-three".