50253521 has 4 divisors (see below), whose sum is σ = 50267700. Its totient is φ = 50239344.

The previous prime is 50253517. The next prime is 50253529. The reversal of 50253521 is 12535205.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11999296 + 38254225 = 3464^2 + 6185^2 .

It is a cyclic number.

It is not a de Polignac number, because 50253521 - 2² = 50253517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50253529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3515 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (12566925).

Almost surely, 2^50253521 is an apocalyptic number.

It is an amenable number.

50253521 is a deficient number, since it is larger than the sum of its proper divisors (14179).

50253521 is an equidigital number, since it uses as much as digits as its factorization.

50253521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14178.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 50253521 is about 7088.9717872199. The cubic root of 50253521 is about 369.0247533476.

Adding to 50253521 its reverse (12535205), we get a palindrome (62788726).

The spelling of 50253521 in words is "fifty million, two hundred fifty-three thousand, five hundred twenty-one".