43053535221 has 4 divisors (see below), whose sum is σ = 57404713632. Its totient is φ = 28702356812.

The previous prime is 43053535163. The next prime is 43053535237. The reversal of 43053535221 is 12253535034.

43053535221 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43053535221 - 2¹³ = 43053527029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43053533221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7175589201 + ... + 7175589206.

It is an arithmetic number, because the mean of its divisors is an integer number (14351178408).

Almost surely, 2^43053535221 is an apocalyptic number.

It is an amenable number.

43053535221 is a deficient number, since it is larger than the sum of its proper divisors (14351178411).

43053535221 is a wasteful number, since it uses less digits than its factorization.

43053535221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14351178410.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 43053535221 in words is "forty-three billion, fifty-three million, five hundred thirty-five thousand, two hundred twenty-one".