50161644 has 36 divisors (see below), whose sum is σ = 136552416. Its totient is φ = 15434208.

The previous prime is 50161637. The next prime is 50161649. The reversal of 50161644 is 44616105.

50161644 is a `hidden beast` number, since 5 + 0 + 1 + 616 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (50161649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53124 + ... + 54059.

Almost surely, 2^50161644 is an apocalyptic number.

It is an amenable number.

50161644 is an abundant number, since it is smaller than the sum of its proper divisors (86390772).

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

50161644 is a wasteful number, since it uses less digits than its factorization.

50161644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107206 (or 107201 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 50161644 is about 7082.4885457020. The cubic root of 50161644 is about 368.7997238702.

Adding to 50161644 its reverse (44616105), we get a palindrome (94777749).

It can be divided in two parts, 50161 and 644, that added together give a palindrome (50805).

The spelling of 50161644 in words is "fifty million, one hundred sixty-one thousand, six hundred forty-four".