528052765 has 4 divisors (see below), whose sum is σ = 633663324. Its totient is φ = 422442208.

The previous prime is 528052751. The next prime is 528052801. The reversal of 528052765 is 567250825.

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

It can be written as a sum of positive squares in 2 ways, for example, as 220611609 + 307441156 = 14853^2 + 17534^2 .

It is a cyclic number.

It is not a de Polignac number, because 528052765 - 2⁹ = 528052253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52805272 + ... + 52805281.

It is an arithmetic number, because the mean of its divisors is an integer number (158415831).

Almost surely, 2^528052765 is an apocalyptic number.

It is an amenable number.

528052765 is a deficient number, since it is larger than the sum of its proper divisors (105610559).

528052765 is a wasteful number, since it uses less digits than its factorization.

528052765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105610558.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 528052765 is about 22979.3987084084. The cubic root of 528052765 is about 808.2749269687.

The spelling of 528052765 in words is "five hundred twenty-eight million, fifty-two thousand, seven hundred sixty-five".