20450411 has 2 divisors, whose sum is σ = 20450412. Its totient is φ = 20450410.

The previous prime is 20450407. The next prime is 20450467. The reversal of 20450411 is 11405402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20450411 - 2² = 20450407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20450411.

It is not a weakly prime, because it can be changed into another prime (20450491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10225205 + 10225206.

It is an arithmetic number, because the mean of its divisors is an integer number (10225206).

Almost surely, 2^20450411 is an apocalyptic number.

20450411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450411 is an equidigital number, since it uses as much as digits as its factorization.

20450411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20450411 is about 4522.2130644188. The cubic root of 20450411 is about 273.4643262998.

Adding to 20450411 its reverse (11405402), we get a palindrome (31855813).

The spelling of 20450411 in words is "twenty million, four hundred fifty thousand, four hundred eleven".