50037221 has 4 divisors (see below), whose sum is σ = 53886252. Its totient is φ = 46188192.

The previous prime is 50037217. The next prime is 50037223. The reversal of 50037221 is 12273005.

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 5013121 + 45024100 = 2239^2 + 6710^2 .

It is a cyclic number.

It is not a de Polignac number, because 50037221 - 2² = 50037217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50037193 and 50037202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50037223) 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, 1924496 + ... + 1924521.

It is an arithmetic number, because the mean of its divisors is an integer number (13471563).

Almost surely, 2^50037221 is an apocalyptic number.

It is an amenable number.

50037221 is a deficient number, since it is larger than the sum of its proper divisors (3849031).

50037221 is a wasteful number, since it uses less digits than its factorization.

50037221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849030.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 50037221 is about 7073.6992443841. The cubic root of 50037221 is about 368.4945427472.

The spelling of 50037221 in words is "fifty million, thirty-seven thousand, two hundred twenty-one".