225740390389 has 2 divisors, whose sum is σ = 225740390390. Its totient is φ = 225740390388.

The previous prime is 225740390383. The next prime is 225740390437. The reversal of 225740390389 is 983093047522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147020865489 + 78719524900 = 383433^2 + 280570^2 .

It is a cyclic number.

It is not a de Polignac number, because 225740390389 - 2⁷ = 225740390261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225740390383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112870195194 + 112870195195.

It is an arithmetic number, because the mean of its divisors is an integer number (112870195195).

Almost surely, 2^225740390389 is an apocalyptic number.

It is an amenable number.

225740390389 is a deficient number, since it is larger than the sum of its proper divisors (1).

225740390389 is an equidigital number, since it uses as much as digits as its factorization.

225740390389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 225740390389 in words is "two hundred twenty-five billion, seven hundred forty million, three hundred ninety thousand, three hundred eighty-nine".