51115163 has 8 divisors (see below), whose sum is σ = 55859520. Its totient is φ = 46387080.

The previous prime is 51115159. The next prime is 51115189. The reversal of 51115163 is 36151115.

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 51115163 - 2² = 51115159 is a prime.

It is a super-2 number, since 2×51115163² = 5225519777033138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51115123) 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, 3056 + ... + 10562.

It is an arithmetic number, because the mean of its divisors is an integer number (6982440).

Almost surely, 2^51115163 is an apocalyptic number.

51115163 is a deficient number, since it is larger than the sum of its proper divisors (4744357).

51115163 is a wasteful number, since it uses less digits than its factorization.

51115163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137.

The product of its digits is 450, while the sum is 23.

The square root of 51115163 is about 7149.4869046667. The cubic root of 51115163 is about 371.1219003527.

Adding to 51115163 its reverse (36151115), we get a palindrome (87266278).

The spelling of 51115163 in words is "fifty-one million, one hundred fifteen thousand, one hundred sixty-three".