20054017 has 2 divisors, whose sum is σ = 20054018. Its totient is φ = 20054016.

The previous prime is 20054011. The next prime is 20054093. The reversal of 20054017 is 71045002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18671041 + 1382976 = 4321^2 + 1176^2 .

It is a cyclic number.

It is not a de Polignac number, because 20054017 - 2¹⁹ = 19529729 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20053985 and 20054003.

It is not a weakly prime, because it can be changed into another prime (20054011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10027008 + 10027009.

It is an arithmetic number, because the mean of its divisors is an integer number (10027009).

It is a Proth number, since it is equal to 153 ⋅ 2¹⁷ + 1 and 153 < 2¹⁷.

Almost surely, 2^20054017 is an apocalyptic number.

It is an amenable number.

20054017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20054017 is an equidigital number, since it uses as much as digits as its factorization.

20054017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20054017 is about 4478.1711668939. The cubic root of 20054017 is about 271.6859164767.

Adding to 20054017 its reverse (71045002), we get a palindrome (91099019).

The spelling of 20054017 in words is "twenty million, fifty-four thousand, seventeen".