66329325 has 36 divisors (see below), whose sum is σ = 125798868. Its totient is φ = 33292800.

The previous prime is 66329303. The next prime is 66329339. The reversal of 66329325 is 52392366.

66329325 is a `hidden beast` number, since 6 + 6 + 329 + 325 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 3697929 + 62631396 = 1923^2 + 7914^2 .

It is not a de Polignac number, because 66329325 - 2⁶ = 66329261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66329325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4846 + ... + 12495.

It is an arithmetic number, because the mean of its divisors is an integer number (3494413).

Almost surely, 2^66329325 is an apocalyptic number.

It is an amenable number.

66329325 is a deficient number, since it is larger than the sum of its proper divisors (59469543).

66329325 is a wasteful number, since it uses less digits than its factorization.

66329325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17374 (or 17366 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 66329325 is about 8144.2817362859. The cubic root of 66329325 is about 404.7950494800.

The spelling of 66329325 in words is "sixty-six million, three hundred twenty-nine thousand, three hundred twenty-five".