550181169 has 6 divisors (see below), whose sum is σ = 794706146. Its totient is φ = 366787440.

The previous prime is 550181167. The next prime is 550181171. The reversal of 550181169 is 961181055.

It is an interprime number because it is at equal distance from previous prime (550181167) and next prime (550181171).

It can be written as a sum of positive squares in only one way, i.e., 304851600 + 245329569 = 17460^2 + 15663^2 .

It is not a de Polignac number, because 550181169 - 2¹ = 550181167 is a prime.

It is a super-2 number, since 2×550181169² = 605398637444413122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550181167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30565612 + ... + 30565629.

Almost surely, 2^550181169 is an apocalyptic number.

It is an amenable number.

550181169 is a deficient number, since it is larger than the sum of its proper divisors (244524977).

550181169 is a wasteful number, since it uses less digits than its factorization.

550181169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61131247 (or 61131244 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

The square root of 550181169 is about 23455.9410171496. The cubic root of 550181169 is about 819.4112217037.

The spelling of 550181169 in words is "five hundred fifty million, one hundred eighty-one thousand, one hundred sixty-nine".