51471 has 24 divisors (see below), whose sum is σ = 91520. Its totient is φ = 27216.

The previous prime is 51461. The next prime is 51473. The reversal of 51471 is 17415.

51471 = 54² + 55² + ... + 67².

51471 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 51471 - 2⁵ = 51439 is a prime.

It is a super-3 number, since 3×51471³ = 409080777480333, which contains 333 as substring.

It is a Duffinian number.

51471 is an undulating number in base 7.

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 (51473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1176 + ... + 1218.

2⁵¹⁴⁷¹ is an apocalyptic number.

51471 is a deficient number, since it is larger than the sum of its proper divisors (40049).

51471 is a wasteful number, since it uses less digits than its factorization.

51471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 72 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 51471 is about 226.8722107267. The cubic root of 51471 is about 37.1981095120.

Adding to 51471 its reverse (17415), we get a palindrome (68886).

It can be divided in two parts, 514 and 71, that added together give a palindrome (585).

The spelling of 51471 in words is "fifty-one thousand, four hundred seventy-one".