550161605 has 16 divisors (see below), whose sum is σ = 765137664. Its totient is φ = 371938560.

The previous prime is 550161559. The next prime is 550161613. The reversal of 550161605 is 506161055.

It is not a de Polignac number, because 550161605 - 2¹⁰ = 550160581 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 108212 + ... + 113181.

It is an arithmetic number, because the mean of its divisors is an integer number (47821104).

Almost surely, 2^550161605 is an apocalyptic number.

It is an amenable number.

550161605 is a deficient number, since it is larger than the sum of its proper divisors (214976059).

550161605 is a wasteful number, since it uses less digits than its factorization.

550161605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221476.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 550161605 is about 23455.5239762407. The cubic root of 550161605 is about 819.4015090539.

The spelling of 550161605 in words is "five hundred fifty million, one hundred sixty-one thousand, six hundred five".