611244253 has 2 divisors, whose sum is σ = 611244254. Its totient is φ = 611244252.

The previous prime is 611244229. The next prime is 611244289. The reversal of 611244253 is 352442116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382085209 + 229159044 = 19547^2 + 15138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611244253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611244653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305622126 + 305622127.

It is an arithmetic number, because the mean of its divisors is an integer number (305622127).

Almost surely, 2^611244253 is an apocalyptic number.

It is an amenable number.

611244253 is a deficient number, since it is larger than the sum of its proper divisors (1).

611244253 is an equidigital number, since it uses as much as digits as its factorization.

611244253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 611244253 is about 24723.3544042875. The cubic root of 611244253 is about 848.6688520757.

Adding to 611244253 its reverse (352442116), we get a palindrome (963686369).

The spelling of 611244253 in words is "six hundred eleven million, two hundred forty-four thousand, two hundred fifty-three".