20450719 has 2 divisors, whose sum is σ = 20450720. Its totient is φ = 20450718.

The previous prime is 20450701. The next prime is 20450737. The reversal of 20450719 is 91705402.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20450701) and next prime (20450737).

It is a cyclic number.

It is not a de Polignac number, because 20450719 - 2⁹ = 20450207 is a prime.

It is a super-2 number, since 2×20450719² = 836463815233922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20450789) 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, 10225359 + 10225360.

It is an arithmetic number, because the mean of its divisors is an integer number (10225360).

Almost surely, 2^20450719 is an apocalyptic number.

20450719 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450719 is an equidigital number, since it uses as much as digits as its factorization.

20450719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20450719 is about 4522.2471184136. The cubic root of 20450719 is about 273.4656991587.

The spelling of 20450719 in words is "twenty million, four hundred fifty thousand, seven hundred nineteen".