551867 has 8 divisors (see below), whose sum is σ = 572880. Its totient is φ = 531360.

The previous prime is 551861. The next prime is 551909. The reversal of 551867 is 768155.

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

It is a cyclic number.

It is not a de Polignac number, because 551867 - 2¹⁰ = 550843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551861) 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, 5009 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (71610).

2⁵⁵¹⁸⁶⁷ is an apocalyptic number.

551867 is a deficient number, since it is larger than the sum of its proper divisors (21013).

551867 is a wasteful number, since it uses less digits than its factorization.

551867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253.

The product of its digits is 8400, while the sum is 32.

The square root of 551867 is about 742.8775134570. The cubic root of 551867 is about 82.0247298007.

The spelling of 551867 in words is "five hundred fifty-one thousand, eight hundred sixty-seven".