283285525 has 18 divisors (see below), whose sum is σ = 357862946. Its totient is φ = 222396000.

The previous prime is 283285451. The next prime is 283285529. The reversal of 283285525 is 525582382.

It can be written as a sum of positive squares in 3 ways, for example, as 743044 + 282542481 = 862^2 + 16809^2 .

It is not a de Polignac number, because 283285525 - 2¹⁷ = 283154453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283285529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 657060 + ... + 657490.

Almost surely, 2^283285525 is an apocalyptic number.

283285525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

283285525 is a deficient number, since it is larger than the sum of its proper divisors (74577421).

283285525 is an frugal number, since it uses more digits than its factorization.

283285525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 497 counting only the distinct ones).

The product of its digits is 192000, while the sum is 40.

The square root of 283285525 is about 16831.0880515788. The cubic root of 283285525 is about 656.7621682787.

The spelling of 283285525 in words is "two hundred eighty-three million, two hundred eighty-five thousand, five hundred twenty-five".