51797743 has 8 divisors (see below), whose sum is σ = 55998320. Its totient is φ = 47744640.

The previous prime is 51797701. The next prime is 51797747. The reversal of 51797743 is 34779715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51797743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51797743.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36138 + ... + 37543.

It is an arithmetic number, because the mean of its divisors is an integer number (6999790).

Almost surely, 2^51797743 is an apocalyptic number.

51797743 is a deficient number, since it is larger than the sum of its proper divisors (4200577).

51797743 is a wasteful number, since it uses less digits than its factorization.

51797743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73737.

The product of its digits is 185220, while the sum is 43.

The square root of 51797743 is about 7197.0648878553. The cubic root of 51797743 is about 372.7665596521.

The spelling of 51797743 in words is "fifty-one million, seven hundred ninety-seven thousand, seven hundred forty-three".