20745059 has 2 divisors, whose sum is σ = 20745060. Its totient is φ = 20745058.

The previous prime is 20745047. The next prime is 20745061. The reversal of 20745059 is 95054702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20745059 - 2⁸ = 20744803 is a prime.

Together with 20745061, 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 (20745019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10372529 + 10372530.

It is an arithmetic number, because the mean of its divisors is an integer number (10372530).

Almost surely, 2^20745059 is an apocalyptic number.

20745059 is a deficient number, since it is larger than the sum of its proper divisors (1).

20745059 is an equidigital number, since it uses as much as digits as its factorization.

20745059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 20745059 is about 4554.6744120738. The cubic root of 20745059 is about 274.7714199743.

The spelling of 20745059 in words is "twenty million, seven hundred forty-five thousand, fifty-nine".