225724252393 has 2 divisors, whose sum is σ = 225724252394. Its totient is φ = 225724252392.

The previous prime is 225724252387. The next prime is 225724252423. The reversal of 225724252393 is 393252427522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219701250729 + 6023001664 = 468723^2 + 77608^2 .

It is a cyclic number.

It is not a de Polignac number, because 225724252393 - 2⁹ = 225724251881 is a prime.

It is not a weakly prime, because it can be changed into another prime (225724252093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112862126196 + 112862126197.

It is an arithmetic number, because the mean of its divisors is an integer number (112862126197).

Almost surely, 2^225724252393 is an apocalyptic number.

It is an amenable number.

225724252393 is a deficient number, since it is larger than the sum of its proper divisors (1).

225724252393 is an equidigital number, since it uses as much as digits as its factorization.

225724252393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 46.

The spelling of 225724252393 in words is "two hundred twenty-five billion, seven hundred twenty-four million, two hundred fifty-two thousand, three hundred ninety-three".