51244 has 12 divisors (see below), whose sum is σ = 93744. Its totient is φ = 24464.

The previous prime is 51241. The next prime is 51257. The reversal of 51244 is 44215.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (51241) 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, 187 + ... + 370.

It is an arithmetic number, because the mean of its divisors is an integer number (7812).

2⁵¹²⁴⁴ is an apocalyptic number.

It is an amenable number.

51244 is a deficient number, since it is larger than the sum of its proper divisors (42500).

51244 is a wasteful number, since it uses less digits than its factorization.

51244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 582 counting only the distinct ones).

The product of its digits is 160, while the sum is 16.

The square root of 51244 is about 226.3713762824. The cubic root of 51244 is about 37.1433445977.

Adding to 51244 its reverse (44215), we get a palindrome (95459).

The spelling of 51244 in words is "fifty-one thousand, two hundred forty-four".