50421225 has 12 divisors (see below), whose sum is σ = 83363216. Its totient is φ = 26891280.

The previous prime is 50421211. The next prime is 50421229. The reversal of 50421225 is 52212405.

50421225 = 84² + 85² + ... + 533².

It is a happy number.

50421225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50421225 - 2⁴ = 50421209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50421229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336067 + ... + 336216.

Almost surely, 2^50421225 is an apocalyptic number.

It is an amenable number.

50421225 is a deficient number, since it is larger than the sum of its proper divisors (32941991).

50421225 is a wasteful number, since it uses less digits than its factorization.

50421225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672296 (or 672291 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 50421225 is about 7100.7904489571. The cubic root of 50421225 is about 369.4347956768.

The spelling of 50421225 in words is "fifty million, four hundred twenty-one thousand, two hundred twenty-five".