53913439 has 2 divisors, whose sum is σ = 53913440. Its totient is φ = 53913438.

The previous prime is 53913437. The next prime is 53913463. The reversal of 53913439 is 93431935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53913439 - 2¹ = 53913437 is a prime.

Together with 53913437, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 53913398 and 53913407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53913437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26956719 + 26956720.

It is an arithmetic number, because the mean of its divisors is an integer number (26956720).

Almost surely, 2^53913439 is an apocalyptic number.

53913439 is a deficient number, since it is larger than the sum of its proper divisors (1).

53913439 is an equidigital number, since it uses as much as digits as its factorization.

53913439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 37.

The square root of 53913439 is about 7342.5771361287. The cubic root of 53913439 is about 377.7742439468.

The spelling of 53913439 in words is "fifty-three million, nine hundred thirteen thousand, four hundred thirty-nine".