51293 has 4 divisors (see below), whose sum is σ = 55968. Its totient is φ = 46620.

The previous prime is 51287. The next prime is 51307. The reversal of 51293 is 39215.

51293 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 a cyclic number.

It is not a de Polignac number, because 51293 - 2⁶ = 51229 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51203) 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, 2321 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (13992).

2⁵¹²⁹³ is an apocalyptic number.

It is an amenable number.

51293 is a deficient number, since it is larger than the sum of its proper divisors (4675).

51293 is a wasteful number, since it uses less digits than its factorization.

51293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674.

The product of its digits is 270, while the sum is 20.

The square root of 51293 is about 226.4795796534. The cubic root of 51293 is about 37.1551797660.

The spelling of 51293 in words is "fifty-one thousand, two hundred ninety-three".