324342553 has 4 divisors (see below), whose sum is σ = 334805248. Its totient is φ = 313879860.

The previous prime is 324342493. The next prime is 324342569. The reversal of 324342553 is 355243423.

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, and also an emirpimes, since its reverse is a distinct semiprime: 355243423 = 227 ⋅1564949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-324342553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 10462663 = 324342553 / (3 + 2 + 4 + 3 + 4 + 2 + 5 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324342353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5231301 + ... + 5231362.

It is an arithmetic number, because the mean of its divisors is an integer number (83701312).

Almost surely, 2^324342553 is an apocalyptic number.

It is an amenable number.

324342553 is a deficient number, since it is larger than the sum of its proper divisors (10462695).

324342553 is a wasteful number, since it uses less digits than its factorization.

324342553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10462694.

The product of its digits is 43200, while the sum is 31.

The square root of 324342553 is about 18009.5128473815. The cubic root of 324342553 is about 687.0705129307.

Adding to 324342553 its reverse (355243423), we get a palindrome (679585976).

It can be divided in two parts, 3243 and 42553, that added together give a square (45796 = 214²).

The spelling of 324342553 in words is "three hundred twenty-four million, three hundred forty-two thousand, five hundred fifty-three".