51337317 has 4 divisors (see below), whose sum is σ = 68449760. Its totient is φ = 34224876.

The previous prime is 51337309. The next prime is 51337327. The reversal of 51337317 is 71373315.

51337317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51337317 - 2³ = 51337309 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 (51337327) 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 3 ways as a sum of consecutive naturals, for example, 8556217 + ... + 8556222.

It is an arithmetic number, because the mean of its divisors is an integer number (17112440).

Almost surely, 2^51337317 is an apocalyptic number.

It is an amenable number.

51337317 is a deficient number, since it is larger than the sum of its proper divisors (17112443).

51337317 is a wasteful number, since it uses less digits than its factorization.

51337317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17112442.

The product of its digits is 6615, while the sum is 30.

The square root of 51337317 is about 7165.0064200948. The cubic root of 51337317 is about 371.6587734074.

The spelling of 51337317 in words is "fifty-one million, three hundred thirty-seven thousand, three hundred seventeen".