53238539 has 2 divisors, whose sum is σ = 53238540. Its totient is φ = 53238538.

The previous prime is 53238533. The next prime is 53238557. The reversal of 53238539 is 93583235.

It is a happy number.

53238539 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 a de Polignac number, because none of the positive numbers 2^k-53238539 is a prime.

It is not a weakly prime, because it can be changed into another prime (53238533) 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, 26619269 + 26619270.

It is an arithmetic number, because the mean of its divisors is an integer number (26619270).

Almost surely, 2^53238539 is an apocalyptic number.

53238539 is a deficient number, since it is larger than the sum of its proper divisors (1).

53238539 is an equidigital number, since it uses as much as digits as its factorization.

53238539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 38.

The square root of 53238539 is about 7296.4744226236. The cubic root of 53238539 is about 376.1912670875.

The spelling of 53238539 in words is "fifty-three million, two hundred thirty-eight thousand, five hundred thirty-nine".