51100000115 has 16 divisors (see below), whose sum is σ = 62813975040. Its totient is φ = 39889275360.

The previous prime is 51100000111. The next prime is 51100000117.

51100000115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51100000115 - 2² = 51100000111 is a prime.

It is a super-2 number, since 2×51100000115² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51100000115.

It is not an unprimeable number, because it can be changed into a prime (51100000111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250685 + ... + 406254.

It is an arithmetic number, because the mean of its divisors is an integer number (3925873440).

Almost surely, 2^51100000115 is an apocalyptic number.

51100000115 is a deficient number, since it is larger than the sum of its proper divisors (11713974925).

51100000115 is a wasteful number, since it uses less digits than its factorization.

51100000115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657322.

The product of its (nonzero) digits is 25, while the sum is 14.

It can be divided in two parts, 51100000 and 115, that added together give a palindrome (51100115).

The spelling of 51100000115 in words is "fifty-one billion, one hundred million, one hundred fifteen", and thus it is an aban number.