325816331 has 2 divisors, whose sum is σ = 325816332. Its totient is φ = 325816330.

The previous prime is 325816261. The next prime is 325816343. The reversal of 325816331 is 133618523.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325816331 is a prime.

It is a super-2 number, since 2×325816331² = 212312563092603122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325815331) 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 as a sum of consecutive naturals, namely, 162908165 + 162908166.

It is an arithmetic number, because the mean of its divisors is an integer number (162908166).

Almost surely, 2^325816331 is an apocalyptic number.

325816331 is a deficient number, since it is larger than the sum of its proper divisors (1).

325816331 is an equidigital number, since it uses as much as digits as its factorization.

325816331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 325816331 is about 18050.3831261278. The cubic root of 325816331 is about 688.1095990837.

The spelling of 325816331 in words is "three hundred twenty-five million, eight hundred sixteen thousand, three hundred thirty-one".