53643243 has 8 divisors (see below), whose sum is σ = 73990800. Its totient is φ = 34528928.

The previous prime is 53643241. The next prime is 53643253. The reversal of 53643243 is 34234635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53643243 - 2¹ = 53643241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53643243.

It is not an unprimeable number, because it can be changed into a prime (53643241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308208 + ... + 308381.

It is an arithmetic number, because the mean of its divisors is an integer number (9248850).

Almost surely, 2^53643243 is an apocalyptic number.

53643243 is a deficient number, since it is larger than the sum of its proper divisors (20347557).

53643243 is a wasteful number, since it uses less digits than its factorization.

53643243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616621.

The product of its digits is 25920, while the sum is 30.

The square root of 53643243 is about 7324.1547635205. The cubic root of 53643243 is about 377.1420942978.

Adding to 53643243 its reverse (34234635), we get a palindrome (87877878).

The spelling of 53643243 in words is "fifty-three million, six hundred forty-three thousand, two hundred forty-three".