5281311 has 8 divisors (see below), whose sum is σ = 8047744. Its totient is φ = 3017880.

The previous prime is 5281273. The next prime is 5281337. The reversal of 5281311 is 1131825.

5281311 is digitally balanced in base 3, 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 5281311 - 2⁶ = 5281247 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: 251491 = 5281311 / (5 + 2 + 8 + 1 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281361) 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 7 ways as a sum of consecutive naturals, for example, 125725 + ... + 125766.

It is an arithmetic number, because the mean of its divisors is an integer number (1005968).

Almost surely, 2^5281311 is an apocalyptic number.

5281311 is a deficient number, since it is larger than the sum of its proper divisors (2766433).

5281311 is a wasteful number, since it uses less digits than its factorization.

5281311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251501.

The product of its digits is 240, while the sum is 21.

The square root of 5281311 is about 2298.1103106683. The cubic root of 5281311 is about 174.1461646718.

The spelling of 5281311 in words is "five million, two hundred eighty-one thousand, three hundred eleven".