51017 has 4 divisors (see below), whose sum is σ = 54036. Its totient is φ = 48000.

The previous prime is 51001. The next prime is 51031. The reversal of 51017 is 71015.

51017 is nontrivially palindromic in base 14.

51017 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.

It can be written as a sum of positive squares in 2 ways, for example, as 33856 + 17161 = 184^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 51017 - 2⁴ = 51001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50992 and 51010.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51017.

It is not an unprimeable number, because it can be changed into a prime (51047) 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, 1484 + ... + 1517.

It is an arithmetic number, because the mean of its divisors is an integer number (13509).

2⁵¹⁰¹⁷ is an apocalyptic number.

It is an amenable number.

51017 is a deficient number, since it is larger than the sum of its proper divisors (3019).

51017 is a wasteful number, since it uses less digits than its factorization.

51017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018.

The product of its (nonzero) digits is 35, while the sum is 14.

The square root of 51017 is about 225.8694313093. The cubic root of 51017 is about 37.0884177124.

The spelling of 51017 in words is "fifty-one thousand, seventeen".