53893439 has 16 divisors (see below), whose sum is σ = 57853440. Its totient is φ = 50091360.

The previous prime is 53893403. The next prime is 53893447. The reversal of 53893439 is 93439835.

It is a cyclic number.

It is not a de Polignac number, because 53893439 - 2⁸ = 53893183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53893439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53892439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149942 + ... + 150300.

It is an arithmetic number, because the mean of its divisors is an integer number (3615840).

Almost surely, 2^53893439 is an apocalyptic number.

53893439 is a deficient number, since it is larger than the sum of its proper divisors (3960001).

53893439 is a wasteful number, since it uses less digits than its factorization.

53893439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

The product of its digits is 349920, while the sum is 44.

The square root of 53893439 is about 7341.2150901605. The cubic root of 53893439 is about 377.7275244925.

The spelling of 53893439 in words is "fifty-three million, eight hundred ninety-three thousand, four hundred thirty-nine".