20245711 has 2 divisors, whose sum is σ = 20245712. Its totient is φ = 20245710.

The previous prime is 20245699. The next prime is 20245739. The reversal of 20245711 is 11754202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20245711 - 2⁵ = 20245679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20245751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122855 + 10122856.

It is an arithmetic number, because the mean of its divisors is an integer number (10122856).

Almost surely, 2^20245711 is an apocalyptic number.

20245711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20245711 is an equidigital number, since it uses as much as digits as its factorization.

20245711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 20245711 is about 4499.5234192079. The cubic root of 20245711 is about 272.5488440346.

Adding to 20245711 its reverse (11754202), we get a palindrome (31999913).

The spelling of 20245711 in words is "twenty million, two hundred forty-five thousand, seven hundred eleven".