51101110056 has 16 divisors (see below), whose sum is σ = 127752775200. Its totient is φ = 17033703344.

The previous prime is 51101110043. The next prime is 51101110103. The reversal of 51101110056 is 65001110115.

It is a happy number.

It is a super-2 number, since 2×51101110056² (a number of 22 digits) contains 22 as substring.

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, 1064606436 + ... + 1064606483.

It is an arithmetic number, because the mean of its divisors is an integer number (7984548450).

Almost surely, 2^51101110056 is an apocalyptic number.

It is an amenable number.

51101110056 is an abundant number, since it is smaller than the sum of its proper divisors (76651665144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51101110056 is a wasteful number, since it uses less digits than its factorization.

51101110056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129212928 (or 2129212924 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 21.

The spelling of 51101110056 in words is "fifty-one billion, one hundred one million, one hundred ten thousand, fifty-six".