54221617 has 2 divisors, whose sum is σ = 54221618. Its totient is φ = 54221616.

The previous prime is 54221599. The next prime is 54221633. The reversal of 54221617 is 71612245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36108081 + 18113536 = 6009^2 + 4256^2 .

It is a cyclic number.

It is not a de Polignac number, because 54221617 - 2¹¹ = 54219569 is a prime.

It is not a weakly prime, because it can be changed into another prime (54221647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27110808 + 27110809.

It is an arithmetic number, because the mean of its divisors is an integer number (27110809).

Almost surely, 2^54221617 is an apocalyptic number.

It is an amenable number.

54221617 is a deficient number, since it is larger than the sum of its proper divisors (1).

54221617 is an equidigital number, since it uses as much as digits as its factorization.

54221617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 54221617 is about 7363.5329156594. The cubic root of 54221617 is about 378.4926831486.

The spelling of 54221617 in words is "fifty-four million, two hundred twenty-one thousand, six hundred seventeen".