225144519997 has 2 divisors, whose sum is σ = 225144519998. Its totient is φ = 225144519996.

The previous prime is 225144519959. The next prime is 225144520063. The reversal of 225144519997 is 799915441522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214900853476 + 10243666521 = 463574^2 + 101211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225144519997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225144519937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112572259998 + 112572259999.

It is an arithmetic number, because the mean of its divisors is an integer number (112572259999).

Almost surely, 2^225144519997 is an apocalyptic number.

It is an amenable number.

225144519997 is a deficient number, since it is larger than the sum of its proper divisors (1).

225144519997 is an equidigital number, since it uses as much as digits as its factorization.

225144519997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 58.

The spelling of 225144519997 in words is "two hundred twenty-five billion, one hundred forty-four million, five hundred nineteen thousand, nine hundred ninety-seven".