282825521 has 16 divisors (see below), whose sum is σ = 319550208. Its totient is φ = 250121520.

The previous prime is 282825509. The next prime is 282825523. The reversal of 282825521 is 125528282.

It is not a de Polignac number, because 282825521 - 2¹⁰ = 282824497 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (282825523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46376 + ... + 52118.

It is an arithmetic number, because the mean of its divisors is an integer number (19971888).

Almost surely, 2^282825521 is an apocalyptic number.

It is an amenable number.

282825521 is a deficient number, since it is larger than the sum of its proper divisors (36724687).

282825521 is an equidigital number, since it uses as much as digits as its factorization.

282825521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5791 counting only the distinct ones).

The product of its digits is 25600, while the sum is 35.

The square root of 282825521 is about 16817.4171917093. The cubic root of 282825521 is about 656.4064883832.

The spelling of 282825521 in words is "two hundred eighty-two million, eight hundred twenty-five thousand, five hundred twenty-one".