20063579 has 2 divisors, whose sum is σ = 20063580. Its totient is φ = 20063578.

The previous prime is 20063557. The next prime is 20063581. The reversal of 20063579 is 97536002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20063579 is a prime.

Together with 20063581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20063279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031789 + 10031790.

It is an arithmetic number, because the mean of its divisors is an integer number (10031790).

Almost surely, 2^20063579 is an apocalyptic number.

20063579 is a deficient number, since it is larger than the sum of its proper divisors (1).

20063579 is an equidigital number, since it uses as much as digits as its factorization.

20063579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 20063579 is about 4479.2386629873. The cubic root of 20063579 is about 271.7290906688.

The spelling of 20063579 in words is "twenty million, sixty-three thousand, five hundred seventy-nine".