20065259 has 2 divisors, whose sum is σ = 20065260. Its totient is φ = 20065258.

The previous prime is 20065249. The next prime is 20065267. The reversal of 20065259 is 95256002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20065259 is a prime.

It is a super-2 number, since 2×20065259² = 805229237474162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20065229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032629 + 10032630.

It is an arithmetic number, because the mean of its divisors is an integer number (10032630).

Almost surely, 2^20065259 is an apocalyptic number.

20065259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20065259 is an equidigital number, since it uses as much as digits as its factorization.

20065259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 20065259 is about 4479.4261909312. The cubic root of 20065259 is about 271.7366747615.

The spelling of 20065259 in words is "twenty million, sixty-five thousand, two hundred fifty-nine".