535242221443 has 4 divisors (see below), whose sum is σ = 535263163920. Its totient is φ = 535221278968.

The previous prime is 535242221431. The next prime is 535242221453. The reversal of 535242221443 is 344122242535.

It is a happy number.

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 535242221443 - 2¹³ = 535242213251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535242221453) 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, 10432855 + ... + 10484032.

It is an arithmetic number, because the mean of its divisors is an integer number (133815790980).

Almost surely, 2^535242221443 is an apocalyptic number.

535242221443 is a deficient number, since it is larger than the sum of its proper divisors (20942477).

535242221443 is a wasteful number, since it uses less digits than its factorization.

535242221443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20942476.

The product of its digits is 230400, while the sum is 37.

Adding to 535242221443 its reverse (344122242535), we get a palindrome (879364463978).

The spelling of 535242221443 in words is "five hundred thirty-five billion, two hundred forty-two million, two hundred twenty-one thousand, four hundred forty-three".