253355350321 has 2 divisors, whose sum is σ = 253355350322. Its totient is φ = 253355350320.

The previous prime is 253355350309. The next prime is 253355350327. The reversal of 253355350321 is 123053553352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237963474225 + 15391876096 = 487815^2 + 124064^2 .

It is a cyclic number.

It is not a de Polignac number, because 253355350321 - 2¹⁹ = 253354826033 is a prime.

It is not a weakly prime, because it can be changed into another prime (253355350327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126677675160 + 126677675161.

It is an arithmetic number, because the mean of its divisors is an integer number (126677675161).

Almost surely, 2^253355350321 is an apocalyptic number.

It is an amenable number.

253355350321 is a deficient number, since it is larger than the sum of its proper divisors (1).

253355350321 is an equidigital number, since it uses as much as digits as its factorization.

253355350321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 202500, while the sum is 37.

The spelling of 253355350321 in words is "two hundred fifty-three billion, three hundred fifty-five million, three hundred fifty thousand, three hundred twenty-one".