50651556565 has 16 divisors (see below), whose sum is σ = 61106371200. Its totient is φ = 40305038400.

The previous prime is 50651556551. The next prime is 50651556569. The reversal of 50651556565 is 56565515605.

It is a de Polignac number, because none of the positive numbers 2^k-50651556565 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50651556569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4423027 + ... + 4434463.

It is an arithmetic number, because the mean of its divisors is an integer number (3819148200).

Almost surely, 2^50651556565 is an apocalyptic number.

It is an amenable number.

50651556565 is a deficient number, since it is larger than the sum of its proper divisors (10454814635).

50651556565 is a wasteful number, since it uses less digits than its factorization.

50651556565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16092.

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 50651556565 in words is "fifty billion, six hundred fifty-one million, five hundred fifty-six thousand, five hundred sixty-five".