528065393 has 4 divisors (see below), whose sum is σ = 528118500. Its totient is φ = 528012288.

The previous prime is 528065389. The next prime is 528065449. The reversal of 528065393 is 393560825.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 360544144 + 167521249 = 18988^2 + 12943^2 .

It is a cyclic number.

It is not a de Polignac number, because 528065393 - 2² = 528065389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528065393.

It is not an unprimeable number, because it can be changed into a prime (528065383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6680 + ... + 33177.

It is an arithmetic number, because the mean of its divisors is an integer number (132029625).

Almost surely, 2^528065393 is an apocalyptic number.

It is an amenable number.

528065393 is a deficient number, since it is larger than the sum of its proper divisors (53107).

528065393 is a wasteful number, since it uses less digits than its factorization.

528065393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53106.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 528065393 is about 22979.6734746166. The cubic root of 528065393 is about 808.2813700208.

The spelling of 528065393 in words is "five hundred twenty-eight million, sixty-five thousand, three hundred ninety-three".