53564243 has 2 divisors, whose sum is σ = 53564244. Its totient is φ = 53564242.

The previous prime is 53564237. The next prime is 53564281. The reversal of 53564243 is 34246535.

53564243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53564243 - 2⁴ = 53564227 is a prime.

It is not a weakly prime, because it can be changed into another prime (53564213) 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, 26782121 + 26782122.

It is an arithmetic number, because the mean of its divisors is an integer number (26782122).

Almost surely, 2^53564243 is an apocalyptic number.

53564243 is a deficient number, since it is larger than the sum of its proper divisors (1).

53564243 is an equidigital number, since it uses as much as digits as its factorization.

53564243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 32.

The square root of 53564243 is about 7318.7596626751. The cubic root of 53564243 is about 376.9568652321.

The spelling of 53564243 in words is "fifty-three million, five hundred sixty-four thousand, two hundred forty-three".