53436443 has 2 divisors, whose sum is σ = 53436444. Its totient is φ = 53436442.

The previous prime is 53436431. The next prime is 53436451. The reversal of 53436443 is 34463435.

53436443 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 53436443 - 2¹⁰ = 53435419 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53436403) 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, 26718221 + 26718222.

It is an arithmetic number, because the mean of its divisors is an integer number (26718222).

Almost surely, 2^53436443 is an apocalyptic number.

53436443 is a deficient number, since it is larger than the sum of its proper divisors (1).

53436443 is an equidigital number, since it uses as much as digits as its factorization.

53436443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 32.

The square root of 53436443 is about 7310.0234609747. The cubic root of 53436443 is about 376.6568301745.

Adding to 53436443 its reverse (34463435), we get a palindrome (87899878).

The spelling of 53436443 in words is "fifty-three million, four hundred thirty-six thousand, four hundred forty-three".