43053523 has 4 divisors (see below), whose sum is σ = 43082080. Its totient is φ = 43024968.

The previous prime is 43053509. The next prime is 43053553. The reversal of 43053523 is 32535034.

It is a happy number.

43053523 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 43053523 - 2²¹ = 40956371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43053553) 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, 11883 + ... + 15076.

It is an arithmetic number, because the mean of its divisors is an integer number (10770520).

Almost surely, 2^43053523 is an apocalyptic number.

43053523 is a deficient number, since it is larger than the sum of its proper divisors (28557).

43053523 is a wasteful number, since it uses less digits than its factorization.

43053523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28556.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 43053523 is about 6561.5183456270. The cubic root of 43053523 is about 350.4851041999.

Adding to 43053523 its reverse (32535034), we get a palindrome (75588557).

The spelling of 43053523 in words is "forty-three million, fifty-three thousand, five hundred twenty-three".