51011055055056 has 40 divisors (see below), whose sum is σ = 132651264599104. Its totient is φ = 16891077830400.

The previous prime is 51011055055043. The next prime is 51011055055057. The reversal of 51011055055056 is 65055055011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51011055055057) 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, 3518967301 + ... + 3518981796.

Almost surely, 2^{51011055055056} is an apocalyptic number.

It is an amenable number.

51011055055056 is an abundant number, since it is smaller than the sum of its proper divisors (81640209544048).

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

51011055055056 is a wasteful number, since it uses less digits than its factorization.

51011055055056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7037949259 (or 7037949253 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 51011055055056 in words is "fifty-one trillion, eleven billion, fifty-five million, fifty-five thousand, fifty-six".