51271167 has 8 divisors (see below), whose sum is σ = 72382896. Its totient is φ = 32170112.

The previous prime is 51271153. The next prime is 51271169. The reversal of 51271167 is 76117215.

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 51271167 - 2¹⁰ = 51270143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51271169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502608 + ... + 502709.

It is an arithmetic number, because the mean of its divisors is an integer number (9047862).

Almost surely, 2^51271167 is an apocalyptic number.

51271167 is a deficient number, since it is larger than the sum of its proper divisors (21111729).

51271167 is a wasteful number, since it uses less digits than its factorization.

51271167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005337.

The product of its digits is 2940, while the sum is 30.

The square root of 51271167 is about 7160.3887464299. The cubic root of 51271167 is about 371.4990728457.

The spelling of 51271167 in words is "fifty-one million, two hundred seventy-one thousand, one hundred sixty-seven".