51065507056 has 20 divisors (see below), whose sum is σ = 98995914352. Its totient is φ = 25518174336.

The previous prime is 51065507039. The next prime is 51065507083. The reversal of 51065507056 is 65070556015.

It is a congruent number.

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, 882276 + ... + 938371.

Almost surely, 2^51065507056 is an apocalyptic number.

It is an amenable number.

51065507056 is a deficient number, since it is larger than the sum of its proper divisors (47930407296).

51065507056 is a wasteful number, since it uses less digits than its factorization.

51065507056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822408 (or 1822402 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 51065507056 in words is "fifty-one billion, sixty-five million, five hundred seven thousand, fifty-six".