53236243 has 2 divisors, whose sum is σ = 53236244. Its totient is φ = 53236242.

The previous prime is 53236223. The next prime is 53236273. The reversal of 53236243 is 34263235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53236243 - 2²¹ = 51139091 is a prime.

It is not a weakly prime, because it can be changed into another prime (53236223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26618121 + 26618122.

It is an arithmetic number, because the mean of its divisors is an integer number (26618122).

Almost surely, 2^53236243 is an apocalyptic number.

53236243 is a deficient number, since it is larger than the sum of its proper divisors (1).

53236243 is an equidigital number, since it uses as much as digits as its factorization.

53236243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 28.

The square root of 53236243 is about 7296.3170846668. The cubic root of 53236243 is about 376.1858590530.

Adding to 53236243 its reverse (34263235), we get a palindrome (87499478).

The spelling of 53236243 in words is "fifty-three million, two hundred thirty-six thousand, two hundred forty-three".