668435325 has 36 divisors (see below), whose sum is σ = 1174017120. Its totient is φ = 335517440.

The previous prime is 668435279. The next prime is 668435329. The reversal of 668435325 is 523534866.

It is not a de Polignac number, because 668435325 - 2¹⁰ = 668434301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668435329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6256 + ... + 37094.

Almost surely, 2^668435325 is an apocalyptic number.

It is an amenable number.

668435325 is a deficient number, since it is larger than the sum of its proper divisors (505581795).

668435325 is a wasteful number, since it uses less digits than its factorization.

668435325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30886 (or 30864 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 668435325 is about 25854.1162099964. The cubic root of 668435325 is about 874.3523152526.

The spelling of 668435325 in words is "six hundred sixty-eight million, four hundred thirty-five thousand, three hundred twenty-five".