331304425 has 24 divisors (see below), whose sum is σ = 433479200. Its totient is φ = 250490880.

The previous prime is 331304423. The next prime is 331304459. The reversal of 331304425 is 524403133.

It is not a de Polignac number, because 331304425 - 2¹ = 331304423 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 331304425.

It is not an unprimeable number, because it can be changed into a prime (331304423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 364822 + ... + 365728.

Almost surely, 2^331304425 is an apocalyptic number.

It is an amenable number.

331304425 is a deficient number, since it is larger than the sum of its proper divisors (102174775).

331304425 is a wasteful number, since it uses less digits than its factorization.

331304425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1700 counting only the distinct ones).

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

The square root of 331304425 is about 18201.7698315301. The cubic root of 331304425 is about 691.9516439920.

Adding to 331304425 its reverse (524403133), we get a palindrome (855707558).

The spelling of 331304425 in words is "three hundred thirty-one million, three hundred four thousand, four hundred twenty-five".