51235 has 4 divisors (see below), whose sum is σ = 61488. Its totient is φ = 40984.

The previous prime is 51229. The next prime is 51239. The reversal of 51235 is 53215.

51235 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51235 - 2⁵ = 51203 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51239) 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, 5119 + ... + 5128.

It is an arithmetic number, because the mean of its divisors is an integer number (15372).

2⁵¹²³⁵ is an apocalyptic number.

51235 is a deficient number, since it is larger than the sum of its proper divisors (10253).

51235 is a wasteful number, since it uses less digits than its factorization.

51235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252.

The product of its digits is 150, while the sum is 16.

The square root of 51235 is about 226.3514965712. The cubic root of 51235 is about 37.1411699713.

The spelling of 51235 in words is "fifty-one thousand, two hundred thirty-five".