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51044 = 2271823

51044 has 12 divisors (see below), whose sum is σ = 102144. Its totient is φ = 21864.

The previous prime is 51043. The next prime is 51047. The reversal of 51044 is 44015.

51044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

51044 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51043) 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, 884 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (8512).

251044 is an apocalyptic number.

It is an amenable number.

51044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51072).

51044 is a wasteful number, since it uses less digits than its factorization.

51044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 51044 is about 225.9291924475. The cubic root of 51044 is about 37.0949593925.

Adding to 51044 its reverse (44015), we get a palindrome (95059).

The spelling of 51044 in words is "fifty-one thousand, forty-four".

Divisors: 1 2 4 7 14 28 1823 3646 7292 12761 25522 51044