50411521 has 4 divisors (see below), whose sum is σ = 50427972. Its totient is φ = 50395072.

The previous prime is 50411513. The next prime is 50411527. The reversal of 50411521 is 12511405.

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 5588496 + 44823025 = 2364^2 + 6695^2 .

It is a cyclic number.

It is not a de Polignac number, because 50411521 - 2³ = 50411513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50411527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116 + ... + 10261.

It is an arithmetic number, because the mean of its divisors is an integer number (12606993).

Almost surely, 2^50411521 is an apocalyptic number.

It is an amenable number.

50411521 is a deficient number, since it is larger than the sum of its proper divisors (16451).

50411521 is a wasteful number, since it uses less digits than its factorization.

50411521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 50411521 is about 7100.1071118681. The cubic root of 50411521 is about 369.4110938511.

Adding to 50411521 its reverse (12511405), we get a palindrome (62922926).

It can be divided in two parts, 5041 and 1521, that multiplied together give a square (7667361 = 2769²).

The spelling of 50411521 in words is "fifty million, four hundred eleven thousand, five hundred twenty-one".