51214244 has 6 divisors (see below), whose sum is σ = 89624934. Its totient is φ = 25607120.

The previous prime is 51214231. The next prime is 51214259. The reversal of 51214244 is 44241215.

It can be written as a sum of positive squares in only one way, i.e., 45024100 + 6190144 = 6710^2 + 2488^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6401777 + ... + 6401784.

It is an arithmetic number, because the mean of its divisors is an integer number (14937489).

Almost surely, 2^51214244 is an apocalyptic number.

It is an amenable number.

51214244 is a deficient number, since it is larger than the sum of its proper divisors (38410690).

51214244 is a wasteful number, since it uses less digits than its factorization.

51214244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12803565 (or 12803563 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 51214244 is about 7156.4127885415. The cubic root of 51214244 is about 371.3615382834.

Adding to 51214244 its reverse (44241215), we get a palindrome (95455459).

The spelling of 51214244 in words is "fifty-one million, two hundred fourteen thousand, two hundred forty-four".