325803511409 has 2 divisors, whose sum is σ = 325803511410. Its totient is φ = 325803511408.

The previous prime is 325803511373. The next prime is 325803511417. The reversal of 325803511409 is 904115308523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210104890384 + 115698621025 = 458372^2 + 340145^2 .

It is a cyclic number.

It is not a de Polignac number, because 325803511409 - 2²⁸ = 325535075953 is a prime.

It is a super-2 number, since 2×325803511409² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (325803511489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162901755704 + 162901755705.

It is an arithmetic number, because the mean of its divisors is an integer number (162901755705).

Almost surely, 2^325803511409 is an apocalyptic number.

It is an amenable number.

325803511409 is a deficient number, since it is larger than the sum of its proper divisors (1).

325803511409 is an equidigital number, since it uses as much as digits as its factorization.

325803511409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 325803511409 in words is "three hundred twenty-five billion, eight hundred three million, five hundred eleven thousand, four hundred nine".