30320452533 has 16 divisors (see below), whose sum is σ = 46205314560. Its totient is φ = 17324952816.

The previous prime is 30320452511. The next prime is 30320452543. The reversal of 30320452533 is 33525402303.

It is not a de Polignac number, because 30320452533 - 2⁶ = 30320452469 is a prime.

It is a super-2 number, since 2×30320452533² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30320452533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320452543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461866 + ... + 523412.

It is an arithmetic number, because the mean of its divisors is an integer number (2887832160).

Almost surely, 2^30320452533 is an apocalyptic number.

It is an amenable number.

30320452533 is a deficient number, since it is larger than the sum of its proper divisors (15884862027).

30320452533 is a wasteful number, since it uses less digits than its factorization.

30320452533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85016.

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 30320452533 its reverse (33525402303), we get a palindrome (63845854836).

The spelling of 30320452533 in words is "thirty billion, three hundred twenty million, four hundred fifty-two thousand, five hundred thirty-three".