323240553 has 12 divisors (see below), whose sum is σ = 467633088. Its totient is φ = 215156760.

The previous prime is 323240543. The next prime is 323240557. The reversal of 323240553 is 355042323.

It is not a de Polignac number, because 323240553 - 2⁴ = 323240537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (323240557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21933 + ... + 33578.

It is an arithmetic number, because the mean of its divisors is an integer number (38969424).

Almost surely, 2^323240553 is an apocalyptic number.

It is an amenable number.

323240553 is a deficient number, since it is larger than the sum of its proper divisors (144392535).

323240553 is a wasteful number, since it uses less digits than its factorization.

323240553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56164 (or 56161 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 323240553 is about 17978.8918735277. The cubic root of 323240553 is about 686.2914900214.

Adding to 323240553 its reverse (355042323), we get a palindrome (678282876).

The spelling of 323240553 in words is "three hundred twenty-three million, two hundred forty thousand, five hundred fifty-three".