528232281 has 16 divisors (see below), whose sum is σ = 765296640. Its totient is φ = 322857360.

The previous prime is 528232273. The next prime is 528232297. The reversal of 528232281 is 182232825.

It is not a de Polignac number, because 528232281 - 2³ = 528232273 is a prime.

It is a super-2 number, since 2×528232281² = 558058685380925922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (528232231) 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 15 ways as a sum of consecutive naturals, for example, 147705 + ... + 151238.

It is an arithmetic number, because the mean of its divisors is an integer number (47831040).

Almost surely, 2^528232281 is an apocalyptic number.

It is an amenable number.

528232281 is a deficient number, since it is larger than the sum of its proper divisors (237064359).

528232281 is a wasteful number, since it uses less digits than its factorization.

528232281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298996.

The product of its digits is 15360, while the sum is 33.

The square root of 528232281 is about 22983.3043968878. The cubic root of 528232281 is about 808.3665098888.

The spelling of 528232281 in words is "five hundred twenty-eight million, two hundred thirty-two thousand, two hundred eighty-one".