51875 has 10 divisors (see below), whose sum is σ = 65604. Its totient is φ = 41000.

The previous prime is 51871. The next prime is 51893. The reversal of 51875 is 57815.

51875 is nontrivially palindromic in base 4.

51875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51875 - 2² = 51871 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51875.

It is not an unprimeable number, because it can be changed into a prime (51871) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 584 + ... + 666.

2⁵¹⁸⁷⁵ is an apocalyptic number.

51875 is a deficient number, since it is larger than the sum of its proper divisors (13729).

51875 is an frugal number, since it uses more digits than its factorization.

51875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 88 counting only the distinct ones).

The product of its digits is 1400, while the sum is 26.

The square root of 51875 is about 227.7608394786. The cubic root of 51875 is about 37.2951796295.

The spelling of 51875 in words is "fifty-one thousand, eight hundred seventy-five".