50087221 has 2 divisors, whose sum is σ = 50087222. Its totient is φ = 50087220.

The previous prime is 50087209. The next prime is 50087237. The reversal of 50087221 is 12278005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36844900 + 13242321 = 6070^2 + 3639^2 .

It is a cyclic number.

It is not a de Polignac number, because 50087221 - 2¹⁵ = 50054453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50087201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25043610 + 25043611.

It is an arithmetic number, because the mean of its divisors is an integer number (25043611).

Almost surely, 2^50087221 is an apocalyptic number.

It is an amenable number.

50087221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50087221 is an equidigital number, since it uses as much as digits as its factorization.

50087221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 50087221 is about 7077.2325806066. The cubic root of 50087221 is about 368.6172420309.

The spelling of 50087221 in words is "fifty million, eighty-seven thousand, two hundred twenty-one".