53839749 has 16 divisors (see below), whose sum is σ = 76420800. Its totient is φ = 33618816.

The previous prime is 53839733. The next prime is 53839771. The reversal of 53839749 is 94793835.

53839749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53839749 - 2⁴ = 53839733 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53839698 and 53839707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53839789) 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 in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (4776300).

Almost surely, 2^53839749 is an apocalyptic number.

It is an amenable number.

53839749 is a deficient number, since it is larger than the sum of its proper divisors (22581051).

53839749 is a wasteful number, since it uses less digits than its factorization.

53839749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10724.

The product of its digits is 816480, while the sum is 48.

The square root of 53839749 is about 7337.5574273732. The cubic root of 53839749 is about 377.6020489279.

The spelling of 53839749 in words is "fifty-three million, eight hundred thirty-nine thousand, seven hundred forty-nine".