20537227 has 2 divisors, whose sum is σ = 20537228. Its totient is φ = 20537226.

The previous prime is 20537219. The next prime is 20537243. The reversal of 20537227 is 72273502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20537227 - 2³ = 20537219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20537195 and 20537204.

It is not a weakly prime, because it can be changed into another prime (20537267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10268613 + 10268614.

It is an arithmetic number, because the mean of its divisors is an integer number (10268614).

Almost surely, 2^20537227 is an apocalyptic number.

20537227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20537227 is an equidigital number, since it uses as much as digits as its factorization.

20537227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 20537227 is about 4531.8017388231. The cubic root of 20537227 is about 273.8507498747.

The spelling of 20537227 in words is "twenty million, five hundred thirty-seven thousand, two hundred twenty-seven".