53415443 has 4 divisors (see below), whose sum is σ = 54291168. Its totient is φ = 52539720.

The previous prime is 53415437. The next prime is 53415463. The reversal of 53415443 is 34451435.

53415443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53415443 - 2⁶ = 53415379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53415433) 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 3 ways as a sum of consecutive naturals, for example, 437771 + ... + 437892.

It is an arithmetic number, because the mean of its divisors is an integer number (13572792).

Almost surely, 2^53415443 is an apocalyptic number.

53415443 is a deficient number, since it is larger than the sum of its proper divisors (875725).

53415443 is an equidigital number, since it uses as much as digits as its factorization.

53415443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875724.

The product of its digits is 14400, while the sum is 29.

The square root of 53415443 is about 7308.5869359268. The cubic root of 53415443 is about 376.6074828915.

Adding to 53415443 its reverse (34451435), we get a palindrome (87866878).

The spelling of 53415443 in words is "fifty-three million, four hundred fifteen thousand, four hundred forty-three".