50661069640281 has 63 divisors (see below), whose sum is σ = 76345214284549. Its totient is φ = 33602240373912.

The previous prime is 50661069640249. The next prime is 50661069640297. The reversal of 50661069640281 is 18204696016605.

The square root of 50661069640281 is 7117659.

It is a perfect power (a square), and thus also a powerful number.

50661069640281 is a `hidden beast` number, since 5 + 0 + 66 + 10 + 6 + 96 + 402 + 81 = 666.

50661069640281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50661069640281 - 2⁵ = 50661069640249 is a prime.

It is a super-2 number, since 2×50661069640281² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50661069640211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 45930252976 + ... + 45930254078.

Almost surely, 2^{50661069640281} is an apocalyptic number.

50661069640281 is the 7117659-th square number.

50661069640281 is the 3558830-th centered octagonal number.

It is an amenable number.

50661069640281 is a deficient number, since it is larger than the sum of its proper divisors (25684144644268).

50661069640281 is an frugal number, since it uses more digits than its factorization.

50661069640281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 50661069640281 in words is "fifty trillion, six hundred sixty-one billion, sixty-nine million, six hundred forty thousand, two hundred eighty-one".