53287439 has 2 divisors, whose sum is σ = 53287440. Its totient is φ = 53287438.

The previous prime is 53287427. The next prime is 53287441. The reversal of 53287439 is 93478235.

53287439 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 53287439 - 2⁸ = 53287183 is a prime.

Together with 53287441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53287396 and 53287405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53287459) 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, 26643719 + 26643720.

It is an arithmetic number, because the mean of its divisors is an integer number (26643720).

Almost surely, 2^53287439 is an apocalyptic number.

53287439 is a deficient number, since it is larger than the sum of its proper divisors (1).

53287439 is an equidigital number, since it uses as much as digits as its factorization.

53287439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 53287439 is about 7299.8245869336. The cubic root of 53287439 is about 376.3064100144.

The spelling of 53287439 in words is "fifty-three million, two hundred eighty-seven thousand, four hundred thirty-nine".