51788317 has 8 divisors (see below), whose sum is σ = 59998016. Its totient is φ = 43781472.

The previous prime is 51788311. The next prime is 51788351. The reversal of 51788317 is 71388715.

It is a happy number.

51788317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51788317 - 2³ = 51788309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51788317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51788311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50163 + ... + 51184.

It is an arithmetic number, because the mean of its divisors is an integer number (7499752).

Almost surely, 2^51788317 is an apocalyptic number.

It is an amenable number.

51788317 is a deficient number, since it is larger than the sum of its proper divisors (8209699).

51788317 is a wasteful number, since it uses less digits than its factorization.

51788317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101427.

The product of its digits is 47040, while the sum is 40.

The square root of 51788317 is about 7196.4100077747. The cubic root of 51788317 is about 372.7439466285.

The spelling of 51788317 in words is "fifty-one million, seven hundred eighty-eight thousand, three hundred seventeen".