51441 has 8 divisors (see below), whose sum is σ = 73920. Its totient is φ = 31632.

The previous prime is 51439. The next prime is 51449. The reversal of 51441 is 14415.

51441 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 51441 - 2¹ = 51439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51441.

It is not an unprimeable number, because it can be changed into a prime (51449) 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, 621 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (9240).

2⁵¹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

51441 is a deficient number, since it is larger than the sum of its proper divisors (22479).

51441 is a wasteful number, since it uses less digits than its factorization.

51441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its digits is 80, while the sum is 15.

The square root of 51441 is about 226.8060845745. The cubic root of 51441 is about 37.1908811040.

Adding to 51441 its reverse (14415), we get a palindrome (65856).

It can be divided in two parts, 514 and 41, that added together give a palindrome (555).

The spelling of 51441 in words is "fifty-one thousand, four hundred forty-one".