550975761 has 24 divisors (see below), whose sum is σ = 911813760. Its totient is φ = 314058816.

The previous prime is 550975687. The next prime is 550975801. The reversal of 550975761 is 167579055.

It is a happy number.

550975761 is a `hidden beast` number, since 5 + 509 + 75 + 76 + 1 = 666.

It is not a de Polignac number, because 550975761 - 2¹⁰ = 550974737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550975561) 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 23 ways as a sum of consecutive naturals, for example, 15076 + ... + 36458.

It is an arithmetic number, because the mean of its divisors is an integer number (37992240).

Almost surely, 2^550975761 is an apocalyptic number.

It is an amenable number.

550975761 is a deficient number, since it is larger than the sum of its proper divisors (360837999).

550975761 is a wasteful number, since it uses less digits than its factorization.

550975761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21805 (or 21802 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 45.

The square root of 550975761 is about 23472.8728748741. The cubic root of 550975761 is about 819.8055066187.

The spelling of 550975761 in words is "five hundred fifty million, nine hundred seventy-five thousand, seven hundred sixty-one".