51427871 has 8 divisors (see below), whose sum is σ = 57408384. Its totient is φ = 45664920.

The previous prime is 51427867. The next prime is 51427877. The reversal of 51427871 is 17872415.

51427871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51427871 - 2² = 51427867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51427877) 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 7 ways as a sum of consecutive naturals, for example, 53891 + ... + 54836.

It is an arithmetic number, because the mean of its divisors is an integer number (7176048).

Almost surely, 2^51427871 is an apocalyptic number.

51427871 is a deficient number, since it is larger than the sum of its proper divisors (5980513).

51427871 is a wasteful number, since it uses less digits than its factorization.

51427871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108781.

The product of its digits is 15680, while the sum is 35.

The square root of 51427871 is about 7171.3228207912. The cubic root of 51427871 is about 371.8771682758.

The spelling of 51427871 in words is "fifty-one million, four hundred twenty-seven thousand, eight hundred seventy-one".