20060591 has 2 divisors, whose sum is σ = 20060592. Its totient is φ = 20060590.

The previous prime is 20060581. The next prime is 20060609. The reversal of 20060591 is 19506002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20060591 is a prime.

It is a super-2 number, since 2×20060591² = 804854622538562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20060581) 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, 10030295 + 10030296.

It is an arithmetic number, because the mean of its divisors is an integer number (10030296).

Almost surely, 2^20060591 is an apocalyptic number.

20060591 is a deficient number, since it is larger than the sum of its proper divisors (1).

20060591 is an equidigital number, since it uses as much as digits as its factorization.

20060591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 20060591 is about 4478.9051117433. The cubic root of 20060591 is about 271.7156007720.

Adding to 20060591 its reverse (19506002), we get a palindrome (39566593).

The spelling of 20060591 in words is "twenty million, sixty thousand, five hundred ninety-one".