51322244 has 6 divisors (see below), whose sum is σ = 89813934. Its totient is φ = 25661120.

The previous prime is 51322231. The next prime is 51322253. The reversal of 51322244 is 44222315.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 56644 = 7160^2 + 238^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6415277 + ... + 6415284.

It is an arithmetic number, because the mean of its divisors is an integer number (14968989).

Almost surely, 2^51322244 is an apocalyptic number.

It is an amenable number.

51322244 is a deficient number, since it is larger than the sum of its proper divisors (38491690).

51322244 is a wasteful number, since it uses less digits than its factorization.

51322244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12830565 (or 12830563 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 51322244 is about 7163.9544945512. The cubic root of 51322244 is about 371.6223959639.

Adding to 51322244 its reverse (44222315), we get a palindrome (95544559).

The spelling of 51322244 in words is "fifty-one million, three hundred twenty-two thousand, two hundred forty-four".