528951285 has 12 divisors (see below), whose sum is σ = 916848972. Its totient is φ = 282107328.

The previous prime is 528951257. The next prime is 528951307. The reversal of 528951285 is 582159825.

It is a happy number.

528951285 is a `hidden beast` number, since 52 + 8 + 9 + 512 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74494161 + 454457124 = 8631^2 + 21318^2 .

It is not a de Polignac number, because 528951285 - 2⁶ = 528951221 is a prime.

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: 11754473 = 528951285 / (5 + 2 + 8 + 9 + 5 + 1 + 2 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 528951285.

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, 5877192 + ... + 5877281.

It is an arithmetic number, because the mean of its divisors is an integer number (76404081).

Almost surely, 2^528951285 is an apocalyptic number.

It is an amenable number.

528951285 is a deficient number, since it is larger than the sum of its proper divisors (387897687).

528951285 is a wasteful number, since it uses less digits than its factorization.

528951285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11754484 (or 11754481 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 528951285 is about 22998.9409538787. The cubic root of 528951285 is about 808.7331132849.

The spelling of 528951285 in words is "five hundred twenty-eight million, nine hundred fifty-one thousand, two hundred eighty-five".