325421563 has 2 divisors, whose sum is σ = 325421564. Its totient is φ = 325421562.

The previous prime is 325421527. The next prime is 325421617. The reversal of 325421563 is 365124523.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325421563 is a prime.

It is not a weakly prime, because it can be changed into another prime (325422563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162710781 + 162710782.

It is an arithmetic number, because the mean of its divisors is an integer number (162710782).

Almost surely, 2^325421563 is an apocalyptic number.

325421563 is a deficient number, since it is larger than the sum of its proper divisors (1).

325421563 is an equidigital number, since it uses as much as digits as its factorization.

325421563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 325421563 is about 18039.4446422278. Note that the first 3 decimals coincide. The cubic root of 325421563 is about 687.8315759476.

The spelling of 325421563 in words is "three hundred twenty-five million, four hundred twenty-one thousand, five hundred sixty-three".