550842489 has 12 divisors (see below), whose sum is σ = 796403556. Its totient is φ = 366885792.

The previous prime is 550842463. The next prime is 550842493. The reversal of 550842489 is 984248055.

It can be written as a sum of positive squares in 2 ways, for example, as 423536400 + 127306089 = 20580^2 + 11283^2 .

It is not a de Polignac number, because 550842489 - 2⁸ = 550842233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550842419) 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 in 11 ways as a sum of consecutive naturals, for example, 18162 + ... + 37835.

It is an arithmetic number, because the mean of its divisors is an integer number (66366963).

Almost surely, 2^550842489 is an apocalyptic number.

It is an amenable number.

550842489 is a deficient number, since it is larger than the sum of its proper divisors (245561067).

550842489 is a wasteful number, since it uses less digits than its factorization.

550842489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57096 (or 57093 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 550842489 is about 23470.0338517012. The cubic root of 550842489 is about 819.7394021198.

The spelling of 550842489 in words is "five hundred fifty million, eight hundred forty-two thousand, four hundred eighty-nine".