550909845 has 96 divisors (see below), whose sum is σ = 1043827200. Its totient is φ = 267898752.

The previous prime is 550909841. The next prime is 550909847. The reversal of 550909845 is 548909055.

550909845 is a `hidden beast` number, since 550 + 9 + 0 + 98 + 4 + 5 = 666.

550909845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550909845 - 2² = 550909841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 550909845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550909841) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3379734 + ... + 3379896.

It is an arithmetic number, because the mean of its divisors is an integer number (10873200).

Almost surely, 2^550909845 is an apocalyptic number.

It is an amenable number.

550909845 is a deficient number, since it is larger than the sum of its proper divisors (492917355).

550909845 is a wasteful number, since it uses less digits than its factorization.

550909845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 550909845 is about 23471.4687439879. The cubic root of 550909845 is about 819.7728128303.

The spelling of 550909845 in words is "five hundred fifty million, nine hundred nine thousand, eight hundred forty-five".