283550489 has 2 divisors, whose sum is σ = 283550490. Its totient is φ = 283550488.

The previous prime is 283550453. The next prime is 283550503. The reversal of 283550489 is 984055382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240870400 + 42680089 = 15520^2 + 6533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-283550489 is a prime.

It is not a weakly prime, because it can be changed into another prime (283550989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141775244 + 141775245.

It is an arithmetic number, because the mean of its divisors is an integer number (141775245).

Almost surely, 2^283550489 is an apocalyptic number.

It is an amenable number.

283550489 is a deficient number, since it is larger than the sum of its proper divisors (1).

283550489 is an equidigital number, since it uses as much as digits as its factorization.

283550489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 283550489 is about 16838.9574796066. The cubic root of 283550489 is about 656.9668664711.

The spelling of 283550489 in words is "two hundred eighty-three million, five hundred fifty thousand, four hundred eighty-nine".