50642660560 has 40 divisors (see below), whose sum is σ = 121804335720. Its totient is φ = 19558543872.

The previous prime is 50642660533. The next prime is 50642660641. The reversal of 50642660560 is 6506624605.

It can be written as a sum of positive squares in 4 ways, for example, as 18492736144 + 32149924416 = 135988^2 + 179304^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 10912047 + ... + 10916686.

It is an arithmetic number, because the mean of its divisors is an integer number (3045108393).

Almost surely, 2^50642660560 is an apocalyptic number.

It is an amenable number.

50642660560 is an abundant number, since it is smaller than the sum of its proper divisors (71161675160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50642660560 is a wasteful number, since it uses less digits than its factorization.

50642660560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21828775 (or 21828769 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 50642660560 in words is "fifty billion, six hundred forty-two million, six hundred sixty thousand, five hundred sixty".