51368944 has 20 divisors (see below), whose sum is σ = 108575640. Its totient is φ = 23349440.

The previous prime is 51368939. The next prime is 51368963. The reversal of 51368944 is 44986315.

It is a junction number, because it is equal to n+sod(n) for n = 51368897 and 51368906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145759 + ... + 146110.

It is an arithmetic number, because the mean of its divisors is an integer number (5428782).

Almost surely, 2^51368944 is an apocalyptic number.

It is an amenable number.

51368944 is an abundant number, since it is smaller than the sum of its proper divisors (57206696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51368944 is a wasteful number, since it uses less digits than its factorization.

51368944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291888 (or 291882 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 51368944 is about 7167.2131264530. The cubic root of 51368944 is about 371.7350794275.

The spelling of 51368944 in words is "fifty-one million, three hundred sixty-eight thousand, nine hundred forty-four".