535530532421 has 4 divisors (see below), whose sum is σ = 542309400000. Its totient is φ = 528751664844.

The previous prime is 535530532373. The next prime is 535530532441. The reversal of 535530532421 is 124235035535.

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 a de Polignac number, because none of the positive numbers 2^k-535530532421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535530532441) 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, 3389433671 + ... + 3389433828.

It is an arithmetic number, because the mean of its divisors is an integer number (135577350000).

Almost surely, 2^535530532421 is an apocalyptic number.

It is an amenable number.

535530532421 is a deficient number, since it is larger than the sum of its proper divisors (6778867579).

535530532421 is an equidigital number, since it uses as much as digits as its factorization.

535530532421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778867578.

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 535530532421 its reverse (124235035535), we get a palindrome (659765567956).

The spelling of 535530532421 in words is "five hundred thirty-five billion, five hundred thirty million, five hundred thirty-two thousand, four hundred twenty-one".