225719207789 has 2 divisors, whose sum is σ = 225719207790. Its totient is φ = 225719207788.

The previous prime is 225719207767. The next prime is 225719207797. The reversal of 225719207789 is 987702917522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190386486889 + 35332720900 = 436333^2 + 187970^2 .

It is a cyclic number.

It is not a de Polignac number, because 225719207789 - 2⁸ = 225719207533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225719207729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112859603894 + 112859603895.

It is an arithmetic number, because the mean of its divisors is an integer number (112859603895).

Almost surely, 2^225719207789 is an apocalyptic number.

It is an amenable number.

225719207789 is a deficient number, since it is larger than the sum of its proper divisors (1).

225719207789 is an equidigital number, since it uses as much as digits as its factorization.

225719207789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 225719207789 in words is "two hundred twenty-five billion, seven hundred nineteen million, two hundred seven thousand, seven hundred eighty-nine".