51375617030056 has 32 divisors (see below), whose sum is σ = 105096500460000. Its totient is φ = 23350328511040.

The previous prime is 51375617030039. The next prime is 51375617030057. The reversal of 51375617030056 is 65003071657315.

It is a junction number, because it is equal to n+sod(n) for n = 51375617029991 and 51375617030009.

It is not an unprimeable number, because it can be changed into a prime (51375617030057) 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, 26879395 + ... + 28727218.

It is an arithmetic number, because the mean of its divisors is an integer number (3284265639375).

Almost surely, 2^{51375617030056} is an apocalyptic number.

It is an amenable number.

51375617030056 is an abundant number, since it is smaller than the sum of its proper divisors (53720883429944).

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

51375617030056 is a wasteful number, since it uses less digits than its factorization.

51375617030056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55617129 (or 55617125 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 49.

The spelling of 51375617030056 in words is "fifty-one trillion, three hundred seventy-five billion, six hundred seventeen million, thirty thousand, fifty-six".