51175857115 has 8 divisors (see below), whose sum is σ = 61412578128. Its totient is φ = 40939652640.

The previous prime is 51175857113. The next prime is 51175857143.

51175857115 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 51175857115 - 2¹ = 51175857113 is a prime.

It is a super-2 number, since 2×51175857115² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51175857113) 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, 139725 + ... + 349105.

It is an arithmetic number, because the mean of its divisors is an integer number (7676572266).

Almost surely, 2^51175857115 is an apocalyptic number.

51175857115 is a deficient number, since it is larger than the sum of its proper divisors (10236721013).

51175857115 is a wasteful number, since it uses less digits than its factorization.

51175857115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258269.

The product of its digits is 245000, while the sum is 46.

The spelling of 51175857115 in words is "fifty-one billion, one hundred seventy-five million, eight hundred fifty-seven thousand, one hundred fifteen".