51776317 has 8 divisors (see below), whose sum is σ = 53339832. Its totient is φ = 50227200.

The previous prime is 51776299. The next prime is 51776321. The reversal of 51776317 is 71367715.

It is a happy number.

51776317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7540516 + 44235801 = 2746^2 + 6651^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51776317 - 2⁷ = 51776189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51776377) 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, 3933 + ... + 10909.

It is an arithmetic number, because the mean of its divisors is an integer number (6667479).

Almost surely, 2^51776317 is an apocalyptic number.

It is an amenable number.

51776317 is a deficient number, since it is larger than the sum of its proper divisors (1563515).

51776317 is a wasteful number, since it uses less digits than its factorization.

51776317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199.

The product of its digits is 30870, while the sum is 37.

The square root of 51776317 is about 7195.5762104226. The cubic root of 51776317 is about 372.7151545949.

The spelling of 51776317 in words is "fifty-one million, seven hundred seventy-six thousand, three hundred seventeen".