4551 has 8 divisors (see below), whose sum is σ = 6384. Its totient is φ = 2880.

The previous prime is 4549. The next prime is 4561. The reversal of 4551 is 1554.

Added to its reverse (1554) it gives a triangular number (6105 = T₁₁₀).

4551 is nontrivially palindromic in base 7.

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

It is not a de Polignac number, because 4551 - 2¹ = 4549 is a prime.

4551 is an undulating number in base 7.

4551 is a lucky number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 4551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91 + ... + 131.

It is an arithmetic number, because the mean of its divisors is an integer number (798).

4551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4551 is a deficient number, since it is larger than the sum of its proper divisors (1833).

4551 is a wasteful number, since it uses less digits than its factorization.

4551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81.

The product of its digits is 100, while the sum is 15.

The square root of 4551 is about 67.4610999021. The cubic root of 4551 is about 16.5717718348.

Multiplying 4551 by its sum of digits (15), we get a triangular number (68265 = T₃₆₉).

Adding to 4551 its reverse (1554), we get a triangular number (6105 = T₁₁₀).

It can be divided in two parts, 4 and 551, that added together give a palindrome (555).

The spelling of 4551 in words is "four thousand, five hundred fifty-one".