5311 has 4 divisors (see below), whose sum is σ = 5472. Its totient is φ = 5152.

The previous prime is 5309. The next prime is 5323. The reversal of 5311 is 1135.

5311 = T₅₈ + T₅₉ + T₆₀.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1135 = 5 ⋅227.

It is a cyclic number.

It is not a de Polignac number, because 5311 - 2¹ = 5309 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8, base 13 and base 16.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10 + ... + 103.

It is an arithmetic number, because the mean of its divisors is an integer number (1368).

2⁵³¹¹ is an apocalyptic number.

5311 is the 60-th centered triangular number.

5311 is a deficient number, since it is larger than the sum of its proper divisors (161).

5311 is a wasteful number, since it uses less digits than its factorization.

5311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its digits is 15, while the sum is 10.

The square root of 5311 is about 72.8766080440. The cubic root of 5311 is about 17.4471877198.

Adding to 5311 its reverse (1135), we get a palindrome (6446).

It can be divided in two parts, 53 and 11, that added together give a 6-th power (64 = 2⁶).

The spelling of 5311 in words is "five thousand, three hundred eleven".