550312785 has 40 divisors (see below), whose sum is σ = 1076175936. Its totient is φ = 266816160.

The previous prime is 550312771. The next prime is 550312811. The reversal of 550312785 is 587213055.

550312785 is a `hidden beast` number, since 550 + 3 + 1 + 27 + 85 = 666.

It is not a de Polignac number, because 550312785 - 2¹⁰ = 550311761 is a prime.

It is a super-2 number, since 2×550312785² = 605688322668912450, which contains 22 as substring.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 57309 + ... + 66218.

Almost surely, 2^550312785 is an apocalyptic number.

550312785 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550312785 is a deficient number, since it is larger than the sum of its proper divisors (525863151).

550312785 is a wasteful number, since it uses less digits than its factorization.

550312785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123555 (or 123546 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 550312785 is about 23458.7464498852. The cubic root of 550312785 is about 819.4765571694.

The spelling of 550312785 in words is "five hundred fifty million, three hundred twelve thousand, seven hundred eighty-five".