65328506 has 4 divisors (see below), whose sum is σ = 97992762. Its totient is φ = 32664252.

The previous prime is 65328493. The next prime is 65328509. The reversal of 65328506 is 60582356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46362481 + 18966025 = 6809^2 + 4355^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65328509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16332125 + ... + 16332128.

Almost surely, 2^65328506 is an apocalyptic number.

65328506 is a deficient number, since it is larger than the sum of its proper divisors (32664256).

65328506 is a wasteful number, since it uses less digits than its factorization.

65328506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32664255.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 65328506 is about 8082.6051493315. The cubic root of 65328506 is about 402.7487879754.

The spelling of 65328506 in words is "sixty-five million, three hundred twenty-eight thousand, five hundred six".