305412205253 has 2 divisors, whose sum is σ = 305412205254. Its totient is φ = 305412205252.

The previous prime is 305412205183. The next prime is 305412205261. The reversal of 305412205253 is 352502214503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302041473889 + 3370731364 = 549583^2 + 58058^2 .

It is a cyclic number.

It is not a de Polignac number, because 305412205253 - 2²² = 305408010949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305412205283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152706102626 + 152706102627.

It is an arithmetic number, because the mean of its divisors is an integer number (152706102627).

Almost surely, 2^305412205253 is an apocalyptic number.

It is an amenable number.

305412205253 is a deficient number, since it is larger than the sum of its proper divisors (1).

305412205253 is an equidigital number, since it uses as much as digits as its factorization.

305412205253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 305412205253 its reverse (352502214503), we get a palindrome (657914419756).

The spelling of 305412205253 in words is "three hundred five billion, four hundred twelve million, two hundred five thousand, two hundred fifty-three".