551271 has 8 divisors (see below), whose sum is σ = 840064. Its totient is φ = 315000.

The previous prime is 551269. The next prime is 551281. The reversal of 551271 is 172155.

551271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 551271 - 2¹ = 551269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 26251 = 551271 / (5 + 5 + 1 + 2 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551271.

It is not an unprimeable number, because it can be changed into a prime (551231) 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, 13105 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (105008).

2⁵⁵¹²⁷¹ is an apocalyptic number.

551271 is a deficient number, since it is larger than the sum of its proper divisors (288793).

551271 is a wasteful number, since it uses less digits than its factorization.

551271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26261.

The product of its digits is 350, while the sum is 21.

The square root of 551271 is about 742.4762622468. The cubic root of 551271 is about 81.9951910723.

It can be divided in two parts, 55 and 1271, that added together give a triangular number (1326 = T₅₁).

The spelling of 551271 in words is "five hundred fifty-one thousand, two hundred seventy-one".