325622609 has 12 divisors (see below), whose sum is σ = 356575500. Its totient is φ = 297183744.

The previous prime is 325622603. The next prime is 325622611. The reversal of 325622609 is 906226523.

It can be written as a sum of positive squares in 6 ways, for example, as 110355025 + 215267584 = 10505^2 + 14672^2 .

It is a de Polignac number, because none of the positive numbers 2^k-325622609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325622603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4217 + ... + 25865.

It is an arithmetic number, because the mean of its divisors is an integer number (29714625).

Almost surely, 2^325622609 is an apocalyptic number.

It is an amenable number.

325622609 is a deficient number, since it is larger than the sum of its proper divisors (30952891).

325622609 is a wasteful number, since it uses less digits than its factorization.

325622609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21764 (or 21751 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 325622609 is about 18045.0161817605. The cubic root of 325622609 is about 687.9731946301.

The spelling of 325622609 in words is "three hundred twenty-five million, six hundred twenty-two thousand, six hundred nine".