20008259 has 2 divisors, whose sum is σ = 20008260. Its totient is φ = 20008258.

The previous prime is 20008253. The next prime is 20008271. The reversal of 20008259 is 95280002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20008259 - 2⁴ = 20008243 is a prime.

It is a super-2 number, since 2×20008259² = 800660856422162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20008253) 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, 10004129 + 10004130.

It is an arithmetic number, because the mean of its divisors is an integer number (10004130).

Almost surely, 2^20008259 is an apocalyptic number.

20008259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20008259 is an equidigital number, since it uses as much as digits as its factorization.

20008259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 20008259 is about 4473.0592439627. The cubic root of 20008259 is about 271.4791204760.

The spelling of 20008259 in words is "twenty million, eight thousand, two hundred fifty-nine".