653255749 has 2 divisors, whose sum is σ = 653255750. Its totient is φ = 653255748.

The previous prime is 653255741. The next prime is 653255791. The reversal of 653255749 is 947552356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565964100 + 87291649 = 23790^2 + 9343^2 .

It is a cyclic number.

It is not a de Polignac number, because 653255749 - 2³ = 653255741 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 653255699 and 653255708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653255741) 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, 326627874 + 326627875.

It is an arithmetic number, because the mean of its divisors is an integer number (326627875).

Almost surely, 2^653255749 is an apocalyptic number.

It is an amenable number.

653255749 is a deficient number, since it is larger than the sum of its proper divisors (1).

653255749 is an equidigital number, since it uses as much as digits as its factorization.

653255749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 46.

The square root of 653255749 is about 25558.8683043675. The cubic root of 653255749 is about 867.6829829907.

The spelling of 653255749 in words is "six hundred fifty-three million, two hundred fifty-five thousand, seven hundred forty-nine".