50443561 has 4 divisors (see below), whose sum is σ = 57649792. Its totient is φ = 43237332.

The previous prime is 50443553. The next prime is 50443567. The reversal of 50443561 is 16534405.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50443561 - 2³ = 50443553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50443567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3603105 + ... + 3603118.

It is an arithmetic number, because the mean of its divisors is an integer number (14412448).

Almost surely, 2^50443561 is an apocalyptic number.

It is an amenable number.

50443561 is a deficient number, since it is larger than the sum of its proper divisors (7206231).

50443561 is an equidigital number, since it uses as much as digits as its factorization.

50443561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206230.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 50443561 is about 7102.3630574619. The cubic root of 50443561 is about 369.4893393565.

Adding to 50443561 its reverse (16534405), we get a palindrome (66977966).

The spelling of 50443561 in words is "fifty million, four hundred forty-three thousand, five hundred sixty-one".