551711 has 4 divisors (see below), whose sum is σ = 558000. Its totient is φ = 545424.

The previous prime is 551693. The next prime is 551713. The reversal of 551711 is 117155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117155 = 5 ⋅23431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551711 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 (551713) 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, 3011 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (139500).

2⁵⁵¹⁷¹¹ is an apocalyptic number.

551711 is a deficient number, since it is larger than the sum of its proper divisors (6289).

551711 is an equidigital number, since it uses as much as digits as its factorization.

551711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288.

The product of its digits is 175, while the sum is 20.

The square root of 551711 is about 742.7725089151. The cubic root of 551711 is about 82.0170002429.

Adding to 551711 its reverse (117155), we get a palindrome (668866).

The spelling of 551711 in words is "five hundred fifty-one thousand, seven hundred eleven".