50504021 has 4 divisors (see below), whose sum is σ = 52699872. Its totient is φ = 48308172.

The previous prime is 50504017. The next prime is 50504057. The reversal of 50504021 is 12040505.

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 50504021 - 2² = 50504017 is a prime.

It is a super-2 number, since 2×50504021² = 5101312274336882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50504521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097891 + ... + 1097936.

It is an arithmetic number, because the mean of its divisors is an integer number (13174968).

Almost surely, 2^50504021 is an apocalyptic number.

It is an amenable number.

50504021 is a deficient number, since it is larger than the sum of its proper divisors (2195851).

50504021 is a wasteful number, since it uses less digits than its factorization.

50504021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195850.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 50504021 is about 7106.6181127172. The cubic root of 50504021 is about 369.6368996918.

Adding to 50504021 its reverse (12040505), we get a palindrome (62544526).

The spelling of 50504021 in words is "fifty million, five hundred four thousand, twenty-one".