51427171 has 4 divisors (see below), whose sum is σ = 53086144. Its totient is φ = 49768200.

The previous prime is 51427163. The next prime is 51427177. The reversal of 51427171 is 17172415.

51427171 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.

It is a cyclic number.

It is not a de Polignac number, because 51427171 - 2³ = 51427163 is a prime.

It is a super-3 number, since 3×51427171³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51427177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829440 + ... + 829501.

It is an arithmetic number, because the mean of its divisors is an integer number (13271536).

Almost surely, 2^51427171 is an apocalyptic number.

51427171 is a deficient number, since it is larger than the sum of its proper divisors (1658973).

51427171 is a wasteful number, since it uses less digits than its factorization.

51427171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658972.

The product of its digits is 1960, while the sum is 28.

The square root of 51427171 is about 7171.2740151245. The cubic root of 51427171 is about 371.8754810247.

Adding to 51427171 its reverse (17172415), we get a palindrome (68599586).

The spelling of 51427171 in words is "fifty-one million, four hundred twenty-seven thousand, one hundred seventy-one".