51271113 has 8 divisors (see below), whose sum is σ = 68413248. Its totient is φ = 34154864.

The previous prime is 51271067. The next prime is 51271127. The reversal of 51271113 is 31117215.

It is a happy number.

51271113 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 51271113 - 2¹³ = 51262921 is a prime.

It is a super-3 number, since 3×51271113³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51271113.

It is not an unprimeable number, because it can be changed into a prime (51271153) 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, 1245 + ... + 10202.

It is an arithmetic number, because the mean of its divisors is an integer number (8551656).

Almost surely, 2^51271113 is an apocalyptic number.

It is an amenable number.

51271113 is a deficient number, since it is larger than the sum of its proper divisors (17142135).

51271113 is a wasteful number, since it uses less digits than its factorization.

51271113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12943.

The product of its digits is 210, while the sum is 21.

The square root of 51271113 is about 7160.3849756839. The cubic root of 51271113 is about 371.4989424218.

Adding to 51271113 its reverse (31117215), we get a palindrome (82388328).

The spelling of 51271113 in words is "fifty-one million, two hundred seventy-one thousand, one hundred thirteen".