20026000591 has 2 divisors, whose sum is σ = 20026000592. Its totient is φ = 20026000590.

The previous prime is 20026000529. The next prime is 20026000649. The reversal of 20026000591 is 19500062002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20026000591 - 2⁹ = 20026000079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20026000091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10013000295 + 10013000296.

It is an arithmetic number, because the mean of its divisors is an integer number (10013000296).

Almost surely, 2^20026000591 is an apocalyptic number.

20026000591 is a deficient number, since it is larger than the sum of its proper divisors (1).

20026000591 is an equidigital number, since it uses as much as digits as its factorization.

20026000591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 20026000591 its reverse (19500062002), we get a palindrome (39526062593).

The spelling of 20026000591 in words is "twenty billion, twenty-six million, five hundred ninety-one", and thus it is an aban number.