528466725 has 18 divisors (see below), whose sum is σ = 946543026. Its totient is φ = 281848800.

The previous prime is 528466723. The next prime is 528466747. The reversal of 528466725 is 527664825.

528466725 is a `hidden beast` number, since 528 + 46 + 67 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 65270241 + 463196484 = 8079^2 + 21522^2 .

It is not a de Polignac number, because 528466725 - 2¹ = 528466723 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528466723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1174146 + ... + 1174595.

Almost surely, 2^528466725 is an apocalyptic number.

It is an amenable number.

528466725 is a deficient number, since it is larger than the sum of its proper divisors (418076301).

528466725 is a wasteful number, since it uses less digits than its factorization.

528466725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348757 (or 2348749 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 528466725 is about 22988.4041420887. The cubic root of 528466725 is about 808.4860839563.

The spelling of 528466725 in words is "five hundred twenty-eight million, four hundred sixty-six thousand, seven hundred twenty-five".