54221047 has 2 divisors, whose sum is σ = 54221048. Its totient is φ = 54221046.

The previous prime is 54221029. The next prime is 54221053. The reversal of 54221047 is 74012245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54221047 - 2⁷ = 54220919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54221647) 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, 27110523 + 27110524.

It is an arithmetic number, because the mean of its divisors is an integer number (27110524).

Almost surely, 2^54221047 is an apocalyptic number.

54221047 is a deficient number, since it is larger than the sum of its proper divisors (1).

54221047 is an equidigital number, since it uses as much as digits as its factorization.

54221047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 54221047 is about 7363.4942113103. The cubic root of 54221047 is about 378.4913568535.

The spelling of 54221047 in words is "fifty-four million, two hundred twenty-one thousand, forty-seven".