551559 has 8 divisors (see below), whose sum is σ = 755440. Its totient is φ = 357696.

The previous prime is 551557. The next prime is 551569. The reversal of 551559 is 955155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551559 - 2¹ = 551557 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 (551557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374 + ... + 2595.

It is an arithmetic number, because the mean of its divisors is an integer number (94430).

2⁵⁵¹⁵⁵⁹ is an apocalyptic number.

551559 is a deficient number, since it is larger than the sum of its proper divisors (203881).

551559 is a wasteful number, since it uses less digits than its factorization.

551559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009.

The product of its digits is 5625, while the sum is 30.

The square root of 551559 is about 742.6701825171. The cubic root of 551559 is about 82.0094674772.

The spelling of 551559 in words is "five hundred fifty-one thousand, five hundred fifty-nine".