51123532115 has 12 divisors (see below), whose sum is σ = 65169237936. Its totient is φ = 38493011328.

The previous prime is 51123532069. The next prime is 51123532121.

51123532115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51123532115 - 2⁶ = 51123532051 is a prime.

It is a super-2 number, since 2×51123532115² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17688359 + ... + 17691248.

It is an arithmetic number, because the mean of its divisors is an integer number (5430769828).

Almost surely, 2^51123532115 is an apocalyptic number.

51123532115 is a deficient number, since it is larger than the sum of its proper divisors (14045705821).

51123532115 is a wasteful number, since it uses less digits than its factorization.

51123532115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35379646 (or 35379629 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

The spelling of 51123532115 in words is "fifty-one billion, one hundred twenty-three million, five hundred thirty-two thousand, one hundred fifteen".