55533227 has 2 divisors, whose sum is σ = 55533228. Its totient is φ = 55533226.

The previous prime is 55533221. The next prime is 55533259. The reversal of 55533227 is 72233555.

It is an a-pointer prime, because the next prime (55533259) can be obtained adding 55533227 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55533227 - 2¹⁰ = 55532203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55533193 and 55533202.

It is not a weakly prime, because it can be changed into another prime (55533221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27766613 + 27766614.

It is an arithmetic number, because the mean of its divisors is an integer number (27766614).

Almost surely, 2^55533227 is an apocalyptic number.

55533227 is a deficient number, since it is larger than the sum of its proper divisors (1).

55533227 is an equidigital number, since it uses as much as digits as its factorization.

55533227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 32.

The square root of 55533227 is about 7452.0619294260. The cubic root of 55533227 is about 381.5202877032.

The spelling of 55533227 in words is "fifty-five million, five hundred thirty-three thousand, two hundred twenty-seven".