51006006056 has 16 divisors (see below), whose sum is σ = 95639843040. Its totient is φ = 25502047920.

The previous prime is 51006005987. The next prime is 51006006059. The reversal of 51006006056 is 65060060015.

It is a super-2 number, since 2×51006006056² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51006006059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140975 + ... + 349121.

It is an arithmetic number, because the mean of its divisors is an integer number (5977490190).

Almost surely, 2^51006006056 is an apocalyptic number.

It is an amenable number.

51006006056 is a deficient number, since it is larger than the sum of its proper divisors (44633836984).

51006006056 is a wasteful number, since it uses less digits than its factorization.

51006006056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238784 (or 238780 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 51006006056 in words is "fifty-one billion, six million, six thousand, fifty-six".