51005116132 has 12 divisors (see below), whose sum is σ = 92336848380. Its totient is φ = 24623159456.

The previous prime is 51005116121. The next prime is 51005116207. The reversal of 51005116132 is 23161150015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32121959076 + 18883157056 = 179226^2 + 137416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51005116097 and 51005116106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219849523 + ... + 219849754.

It is an arithmetic number, because the mean of its divisors is an integer number (7694737365).

Almost surely, 2^51005116132 is an apocalyptic number.

It is an amenable number.

51005116132 is a deficient number, since it is larger than the sum of its proper divisors (41331732248).

51005116132 is a wasteful number, since it uses less digits than its factorization.

51005116132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439699310 (or 439699308 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 51005116132 its reverse (23161150015), we get a palindrome (74166266147).

The spelling of 51005116132 in words is "fifty-one billion, five million, one hundred sixteen thousand, one hundred thirty-two".