325020402209 has 2 divisors, whose sum is σ = 325020402210. Its totient is φ = 325020402208.

The previous prime is 325020402197. The next prime is 325020402331. The reversal of 325020402209 is 902204020523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214783121809 + 110237280400 = 463447^2 + 332020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325020402209 is a prime.

It is not a weakly prime, because it can be changed into another prime (325020402709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162510201104 + 162510201105.

It is an arithmetic number, because the mean of its divisors is an integer number (162510201105).

Almost surely, 2^325020402209 is an apocalyptic number.

It is an amenable number.

325020402209 is a deficient number, since it is larger than the sum of its proper divisors (1).

325020402209 is an equidigital number, since it uses as much as digits as its factorization.

325020402209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 325020402209 in words is "three hundred twenty-five billion, twenty million, four hundred two thousand, two hundred nine".