325603966 has 4 divisors (see below), whose sum is σ = 488405952. Its totient is φ = 162801982.

The previous prime is 325603961. The next prime is 325603981. The reversal of 325603966 is 669306523.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669306523 = 31 ⋅21590533.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325603961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81400990 + ... + 81400993.

It is an arithmetic number, because the mean of its divisors is an integer number (122101488).

Almost surely, 2^325603966 is an apocalyptic number.

325603966 is a deficient number, since it is larger than the sum of its proper divisors (162801986).

325603966 is a wasteful number, since it uses less digits than its factorization.

325603966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162801985.

The product of its (nonzero) digits is 174960, while the sum is 40.

The square root of 325603966 is about 18044.4996051428. The cubic root of 325603966 is about 687.9600647791.

The spelling of 325603966 in words is "three hundred twenty-five million, six hundred three thousand, nine hundred sixty-six".