533321243 has 18 divisors (see below), whose sum is σ = 671798124. Its totient is φ = 421961904.

The previous prime is 533321207. The next prime is 533321251. The reversal of 533321243 is 342123335.

It is a happy number.

It is not a de Polignac number, because 533321243 - 2¹⁸ = 533059099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533321143) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23921 + ... + 40482.

It is an arithmetic number, because the mean of its divisors is an integer number (37322118).

Almost surely, 2^533321243 is an apocalyptic number.

533321243 is a deficient number, since it is larger than the sum of its proper divisors (138476881).

533321243 is a wasteful number, since it uses less digits than its factorization.

533321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64443 (or 64423 counting only the distinct ones).

The product of its digits is 6480, while the sum is 26.

The square root of 533321243 is about 23093.7490027063. The cubic root of 533321243 is about 810.9541380427.

Adding to 533321243 its reverse (342123335), we get a palindrome (875444578).

The spelling of 533321243 in words is "five hundred thirty-three million, three hundred twenty-one thousand, two hundred forty-three".