528357285 has 12 divisors (see below), whose sum is σ = 915819372. Its totient is φ = 281790528.

The previous prime is 528357253. The next prime is 528357329. The reversal of 528357285 is 582753825.

It can be written as a sum of positive squares in 2 ways, for example, as 190937124 + 337420161 = 13818^2 + 18369^2 .

It is not a de Polignac number, because 528357285 - 2⁵ = 528357253 is a prime.

It is a super-2 number, since 2×528357285² = 558322841225142450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11741273 = 528357285 / (5 + 2 + 8 + 3 + 5 + 7 + 2 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 528357285.

It is a congruent number.

It is an unprimeable number.

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

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5870592 + ... + 5870681.

It is an arithmetic number, because the mean of its divisors is an integer number (76318281).

Almost surely, 2^528357285 is an apocalyptic number.

It is an amenable number.

528357285 is a deficient number, since it is larger than the sum of its proper divisors (387462087).

528357285 is a wasteful number, since it uses less digits than its factorization.

528357285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741284 (or 11741281 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 528357285 is about 22986.0236883198. The cubic root of 528357285 is about 808.4302703978.

The spelling of 528357285 in words is "five hundred twenty-eight million, three hundred fifty-seven thousand, two hundred eighty-five".