50556506665 has 8 divisors (see below), whose sum is σ = 69334637760. Its totient is φ = 34667318832.

The previous prime is 50556506657. The next prime is 50556506711. The reversal of 50556506665 is 56660565505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50556506665 - 2³ = 50556506657 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722235775 + ... + 722235844.

It is an arithmetic number, because the mean of its divisors is an integer number (8666829720).

Almost surely, 2^50556506665 is an apocalyptic number.

It is an amenable number.

50556506665 is a deficient number, since it is larger than the sum of its proper divisors (18778131095).

50556506665 is a wasteful number, since it uses less digits than its factorization.

50556506665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444471631.

The product of its (nonzero) digits is 4050000, while the sum is 49.

The spelling of 50556506665 in words is "fifty billion, five hundred fifty-six million, five hundred six thousand, six hundred sixty-five".