51797744 has 20 divisors (see below), whose sum is σ = 100688496. Its totient is φ = 25813632.

The previous prime is 51797701. The next prime is 51797747. The reversal of 51797744 is 44779715.

It is a junction number, because it is equal to n+sod(n) for n = 51797695 and 51797704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51797747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 10179.

Almost surely, 2^51797744 is an apocalyptic number.

It is an amenable number.

51797744 is a deficient number, since it is larger than the sum of its proper divisors (48890752).

51797744 is a wasteful number, since it uses less digits than its factorization.

51797744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10664 (or 10658 counting only the distinct ones).

The product of its digits is 246960, while the sum is 44.

The square root of 51797744 is about 7197.0649573281. The cubic root of 51797744 is about 372.7665620509.

The spelling of 51797744 in words is "fifty-one million, seven hundred ninety-seven thousand, seven hundred forty-four".