53458439 has 2 divisors, whose sum is σ = 53458440. Its totient is φ = 53458438.

The previous prime is 53458403. The next prime is 53458441. The reversal of 53458439 is 93485435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53458439 - 2¹² = 53454343 is a prime.

Together with 53458441, 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 = 53458396 and 53458405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53458459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26729219 + 26729220.

It is an arithmetic number, because the mean of its divisors is an integer number (26729220).

Almost surely, 2^53458439 is an apocalyptic number.

53458439 is a deficient number, since it is larger than the sum of its proper divisors (1).

53458439 is an equidigital number, since it uses as much as digits as its factorization.

53458439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 53458439 is about 7311.5278157168. The cubic root of 53458439 is about 376.7085040675.

The spelling of 53458439 in words is "fifty-three million, four hundred fifty-eight thousand, four hundred thirty-nine".