551065 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 438192.

The previous prime is 551063. The next prime is 551069. The reversal of 551065 is 560155.

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 551065 - 2¹ = 551063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551063) 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, 1356 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁵⁵¹⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

551065 is a deficient number, since it is larger than the sum of its proper divisors (114215).

551065 is a wasteful number, since it uses less digits than its factorization.

551065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 551065 is about 742.3375243109. The cubic root of 551065 is about 81.9849764267.

The spelling of 551065 in words is "five hundred fifty-one thousand, sixty-five".