50644429061 has 4 divisors (see below), whose sum is σ = 52013197452. Its totient is φ = 49275660672.

The previous prime is 50644429051. The next prime is 50644429159. The reversal of 50644429061 is 16092444605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16092444605 = 5 ⋅3218488921.

It can be written as a sum of positive squares in 2 ways, for example, as 37073577025 + 13570852036 = 192545^2 + 116494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50644429061 is a prime.

It is a super-2 number, since 2×50644429061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50644429051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684384140 + ... + 684384213.

It is an arithmetic number, because the mean of its divisors is an integer number (13003299363).

Almost surely, 2^50644429061 is an apocalyptic number.

It is an amenable number.

50644429061 is a deficient number, since it is larger than the sum of its proper divisors (1368768391).

50644429061 is a wasteful number, since it uses less digits than its factorization.

50644429061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368768390.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 50644429061 in words is "fifty billion, six hundred forty-four million, four hundred twenty-nine thousand, sixty-one".