54821227 has 2 divisors, whose sum is σ = 54821228. Its totient is φ = 54821226.

The previous prime is 54821191. The next prime is 54821231. The reversal of 54821227 is 72212845.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54821227 - 2¹¹ = 54819179 is a prime.

It is not a weakly prime, because it can be changed into another prime (54821267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27410613 + 27410614.

It is an arithmetic number, because the mean of its divisors is an integer number (27410614).

Almost surely, 2^54821227 is an apocalyptic number.

54821227 is a deficient number, since it is larger than the sum of its proper divisors (1).

54821227 is an equidigital number, since it uses as much as digits as its factorization.

54821227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 31.

The square root of 54821227 is about 7404.1358037248. The cubic root of 54821227 is about 379.8827593072.

The spelling of 54821227 in words is "fifty-four million, eight hundred twenty-one thousand, two hundred twenty-seven".