50443553421 has 12 divisors (see below), whose sum is σ = 72883236348. Its totient is φ = 33619654464.

The previous prime is 50443553341. The next prime is 50443553429. The reversal of 50443553421 is 12435534405.

50443553421 is a `hidden beast` number, since 50 + 44 + 35 + 534 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35114637321 + 15328916100 = 187389^2 + 123810^2 .

It is not a de Polignac number, because 50443553421 - 2⁹ = 50443552909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50443553429) 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, 747630 + ... + 812303.

It is an arithmetic number, because the mean of its divisors is an integer number (6073603029).

Almost surely, 2^50443553421 is an apocalyptic number.

It is an amenable number.

50443553421 is a deficient number, since it is larger than the sum of its proper divisors (22439682927).

50443553421 is a wasteful number, since it uses less digits than its factorization.

50443553421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563532 (or 1563529 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 50443553421 in words is "fifty billion, four hundred forty-three million, five hundred fifty-three thousand, four hundred twenty-one".