551169 has 12 divisors (see below), whose sum is σ = 813696. Its totient is φ = 359352.

The previous prime is 551143. The next prime is 551179. The reversal of 551169 is 961155.

It is not a de Polignac number, because 551169 - 2⁹ = 550657 is a prime.

It is a super-2 number, since 2×551169² = 607574533122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (67808).

2⁵⁵¹¹⁶⁹ is an apocalyptic number.

It is an amenable number.

551169 is a deficient number, since it is larger than the sum of its proper divisors (262527).

551169 is a wasteful number, since it uses less digits than its factorization.

551169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1353 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 551169 is about 742.4075700045. The cubic root of 551169 is about 81.9901336533.

The spelling of 551169 in words is "five hundred fifty-one thousand, one hundred sixty-nine".