528840065 has 16 divisors (see below), whose sum is σ = 688816128. Its totient is φ = 387446976.

The previous prime is 528840019. The next prime is 528840071. The reversal of 528840065 is 560048825.

It is a cyclic number.

It is not a de Polignac number, because 528840065 - 2⁸ = 528839809 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23777 + ... + 40286.

It is an arithmetic number, because the mean of its divisors is an integer number (43051008).

Almost surely, 2^528840065 is an apocalyptic number.

It is an amenable number.

528840065 is a deficient number, since it is larger than the sum of its proper divisors (159976063).

528840065 is a wasteful number, since it uses less digits than its factorization.

528840065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64208.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 528840065 is about 22996.5228893413. The cubic root of 528840065 is about 808.6764265260.

The spelling of 528840065 in words is "five hundred twenty-eight million, eight hundred forty thousand, sixty-five".