53243538 has 16 divisors (see below), whose sum is σ = 107684640. Its totient is φ = 17548256.

The previous prime is 53243537. The next prime is 53243573. The reversal of 53243538 is 83534235.

53243538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 53243499 and 53243508.

It is not an unprimeable number, because it can be changed into a prime (53243537) 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, 49320 + ... + 50387.

It is an arithmetic number, because the mean of its divisors is an integer number (6730290).

Almost surely, 2^53243538 is an apocalyptic number.

53243538 is an abundant number, since it is smaller than the sum of its proper divisors (54441102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53243538 is a wasteful number, since it uses less digits than its factorization.

53243538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99801.

The product of its digits is 43200, while the sum is 33.

The square root of 53243538 is about 7296.8169772854. The cubic root of 53243538 is about 376.2030412729.

The spelling of 53243538 in words is "fifty-three million, two hundred forty-three thousand, five hundred thirty-eight".