51279944 has 16 divisors (see below), whose sum is σ = 96272700. Its totient is φ = 25607232.

The previous prime is 51279941. The next prime is 51279953. The reversal of 51279944 is 44997215.

It can be written as a sum of positive squares in 2 ways, for example, as 49984900 + 1295044 = 7070^2 + 1138^2 .

It is not an unprimeable number, because it can be changed into a prime (51279941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3362 + ... + 10670.

Almost surely, 2^51279944 is an apocalyptic number.

It is an amenable number.

51279944 is a deficient number, since it is larger than the sum of its proper divisors (44992756).

51279944 is a wasteful number, since it uses less digits than its factorization.

51279944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192 (or 8188 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 51279944 is about 7161.0016059208. The cubic root of 51279944 is about 371.5202703433.

The spelling of 51279944 in words is "fifty-one million, two hundred seventy-nine thousand, nine hundred forty-four".