51371 has 4 divisors (see below), whose sum is σ = 52512. Its totient is φ = 50232.

The previous prime is 51361. The next prime is 51383. The reversal of 51371 is 17315.

51371 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 an emirpimes, since its reverse is a distinct semiprime: 17315 = 5 ⋅3463.

It is a cyclic number.

It is not a de Polignac number, because 51371 - 2⁶ = 51307 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (51341) 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, 500 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (13128).

2⁵¹³⁷¹ is an apocalyptic number.

51371 is a deficient number, since it is larger than the sum of its proper divisors (1141).

51371 is a wasteful number, since it uses less digits than its factorization.

51371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its digits is 105, while the sum is 17.

The square root of 51371 is about 226.6517151932. The cubic root of 51371 is about 37.1740038826.

Adding to 51371 its reverse (17315), we get a palindrome (68686).

The spelling of 51371 in words is "fifty-one thousand, three hundred seventy-one".