50445121 has 4 divisors (see below), whose sum is σ = 50891652. Its totient is φ = 49998592.

The previous prime is 50445119. The next prime is 50445127. The reversal of 50445121 is 12154405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 43046721 = 2720^2 + 6561^2 .

It is a cyclic number.

It is not a de Polignac number, because 50445121 - 2¹ = 50445119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50445092 and 50445101.

It is not an unprimeable number, because it can be changed into a prime (50445127) 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, 223096 + ... + 223321.

It is an arithmetic number, because the mean of its divisors is an integer number (12722913).

Almost surely, 2^50445121 is an apocalyptic number.

It is an amenable number.

50445121 is a deficient number, since it is larger than the sum of its proper divisors (446531).

50445121 is a wasteful number, since it uses less digits than its factorization.

50445121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446530.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 50445121 is about 7102.4728792161. The cubic root of 50445121 is about 369.4931482167.

Adding to 50445121 its reverse (12154405), we get a palindrome (62599526).

The spelling of 50445121 in words is "fifty million, four hundred forty-five thousand, one hundred twenty-one".