51017564133 has 12 divisors (see below), whose sum is σ = 74144137600. Its totient is φ = 33803047656.

The previous prime is 51017564119. The next prime is 51017564137. The reversal of 51017564133 is 33146571015.

51017564133 is a `hidden beast` number, since 5 + 1 + 0 + 1 + 7 + 5 + 641 + 3 + 3 = 666.

It is not a de Polignac number, because 51017564133 - 2⁹ = 51017563621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51017564137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17386933 + ... + 17389866.

Almost surely, 2^51017564133 is an apocalyptic number.

It is an amenable number.

51017564133 is a deficient number, since it is larger than the sum of its proper divisors (23126573467).

51017564133 is a wasteful number, since it uses less digits than its factorization.

51017564133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34776968 (or 34776965 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 51017564133 in words is "fifty-one billion, seventeen million, five hundred sixty-four thousand, one hundred thirty-three".