51544244 has 6 divisors (see below), whose sum is σ = 90202434. Its totient is φ = 25772120.

The previous prime is 51544237. The next prime is 51544271. The reversal of 51544244 is 44244515.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 250000 = 7162^2 + 500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443027 + ... + 6443034.

It is an arithmetic number, because the mean of its divisors is an integer number (15033739).

Almost surely, 2^51544244 is an apocalyptic number.

It is an amenable number.

51544244 is a deficient number, since it is larger than the sum of its proper divisors (38658190).

51544244 is a wasteful number, since it uses less digits than its factorization.

51544244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12886065 (or 12886063 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 51544244 is about 7179.4320109602. The cubic root of 51544244 is about 372.1574563718.

Adding to 51544244 its reverse (44244515), we get a palindrome (95788759).

The spelling of 51544244 in words is "fifty-one million, five hundred forty-four thousand, two hundred forty-four".