51061060056 has 64 divisors (see below), whose sum is σ = 135203644800. Its totient is φ = 16014176768.

The previous prime is 51061060027. The next prime is 51061060067. The reversal of 51061060056 is 65006016015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1426231 + ... + 1461593.

It is an arithmetic number, because the mean of its divisors is an integer number (2112556950).

Almost surely, 2^51061060056 is an apocalyptic number.

It is an amenable number.

51061060056 is an abundant number, since it is smaller than the sum of its proper divisors (84142584744).

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

51061060056 is a wasteful number, since it uses less digits than its factorization.

51061060056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38928 (or 38924 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 51061060056 in words is "fifty-one billion, sixty-one million, sixty thousand, fifty-six".