551159 has 4 divisors (see below), whose sum is σ = 629904. Its totient is φ = 472416.

The previous prime is 551143. The next prime is 551179. The reversal of 551159 is 951155.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 551159 - 2⁴ = 551143 is a prime.

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39362 + ... + 39375.

It is an arithmetic number, because the mean of its divisors is an integer number (157476).

2⁵⁵¹¹⁵⁹ is an apocalyptic number.

551159 is a deficient number, since it is larger than the sum of its proper divisors (78745).

551159 is an equidigital number, since it uses as much as digits as its factorization.

551159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78744.

The product of its digits is 1125, while the sum is 26.

The square root of 551159 is about 742.4008351288. The cubic root of 551159 is about 81.9896377943.

The spelling of 551159 in words is "five hundred fifty-one thousand, one hundred fifty-nine".