53553439 has 2 divisors, whose sum is σ = 53553440. Its totient is φ = 53553438.

The previous prime is 53553413. The next prime is 53553443. The reversal of 53553439 is 93435535.

53553439 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 53553439 - 2¹¹ = 53551391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53553398 and 53553407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53551439) 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, 26776719 + 26776720.

It is an arithmetic number, because the mean of its divisors is an integer number (26776720).

Almost surely, 2^53553439 is an apocalyptic number.

53553439 is a deficient number, since it is larger than the sum of its proper divisors (1).

53553439 is an equidigital number, since it uses as much as digits as its factorization.

53553439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121500, while the sum is 37.

The square root of 53553439 is about 7318.0215222422. The cubic root of 53553439 is about 376.9315192451.

The spelling of 53553439 in words is "fifty-three million, five hundred fifty-three thousand, four hundred thirty-nine".