51271071 has 8 divisors (see below), whose sum is σ = 71333760. Its totient is φ = 32694552.

The previous prime is 51271067. The next prime is 51271127. The reversal of 51271071 is 17017215.

It is a happy number.

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

It is not a de Polignac number, because 51271071 - 2² = 51271067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51271021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371461 + ... + 371598.

It is an arithmetic number, because the mean of its divisors is an integer number (8916720).

Almost surely, 2^51271071 is an apocalyptic number.

51271071 is a deficient number, since it is larger than the sum of its proper divisors (20062689).

51271071 is a wasteful number, since it uses less digits than its factorization.

51271071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743085.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 51271071 is about 7160.3820428801. The cubic root of 51271071 is about 371.4988409809.

Adding to 51271071 its reverse (17017215), we get a palindrome (68288286).

The spelling of 51271071 in words is "fifty-one million, two hundred seventy-one thousand, seventy-one".