53839810 has 16 divisors (see below), whose sum is σ = 99531576. Its totient is φ = 20953728.

The previous prime is 53839789. The next prime is 53839813. The reversal of 53839810 is 1893835.

53839810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50822641 + 3017169 = 7129^2 + 1737^2 .

It is a super-2 number, since 2×53839810² = 5797450281672200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 53839810.

It is not an unprimeable number, because it can be changed into a prime (53839813) 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 7 ways as a sum of consecutive naturals, for example, 72387 + ... + 73126.

Almost surely, 2^53839810 is an apocalyptic number.

53839810 is a deficient number, since it is larger than the sum of its proper divisors (45691766).

53839810 is a wasteful number, since it uses less digits than its factorization.

53839810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145557.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 53839810 is about 7337.5615840686. The cubic root of 53839810 is about 377.6021915345.

The spelling of 53839810 in words is "fifty-three million, eight hundred thirty-nine thousand, eight hundred ten".