321332425 has 24 divisors (see below), whose sum is σ = 420848064. Its totient is φ = 242890560.

The previous prime is 321332423. The next prime is 321332437. The reversal of 321332425 is 524233123.

It is not a de Polignac number, because 321332425 - 2¹ = 321332423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321332425.

It is not an unprimeable number, because it can be changed into a prime (321332423) 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 23 ways as a sum of consecutive naturals, for example, 44359 + ... + 51091.

It is an arithmetic number, because the mean of its divisors is an integer number (17535336).

Almost surely, 2^321332425 is an apocalyptic number.

It is an amenable number.

321332425 is a deficient number, since it is larger than the sum of its proper divisors (99515639).

321332425 is a wasteful number, since it uses less digits than its factorization.

321332425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6849 (or 6844 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 321332425 is about 17925.7475436870. The cubic root of 321332425 is about 684.9384035401.

Adding to 321332425 its reverse (524233123), we get a palindrome (845565548).

The spelling of 321332425 in words is "three hundred twenty-one million, three hundred thirty-two thousand, four hundred twenty-five".