50152221 has 12 divisors (see below), whose sum is σ = 82791072. Its totient is φ = 28658376.

The previous prime is 50152217. The next prime is 50152231. The reversal of 50152221 is 12225105.

It is not a de Polignac number, because 50152221 - 2² = 50152217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50152194 and 50152203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50152211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397971 + ... + 398096.

It is an arithmetic number, because the mean of its divisors is an integer number (6899256).

Almost surely, 2^50152221 is an apocalyptic number.

It is an amenable number.

50152221 is a deficient number, since it is larger than the sum of its proper divisors (32638851).

50152221 is a wasteful number, since it uses less digits than its factorization.

50152221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796080 (or 796077 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 50152221 is about 7081.8232821781. The cubic root of 50152221 is about 368.7766290834.

Adding to 50152221 its reverse (12225105), we get a palindrome (62377326).

The spelling of 50152221 in words is "fifty million, one hundred fifty-two thousand, two hundred twenty-one".