253444425134447 has 2 divisors, whose sum is σ = 253444425134448. Its totient is φ = 253444425134446.

The previous prime is 253444425134443. The next prime is 253444425134477. The reversal of 253444425134447 is 744431524444352.

253444425134447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253444425134447 - 2² = 253444425134443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253444425134392 and 253444425134401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253444425134443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126722212567223 + 126722212567224.

It is an arithmetic number, because the mean of its divisors is an integer number (126722212567224).

Almost surely, 2^{253444425134447} is an apocalyptic number.

253444425134447 is a deficient number, since it is larger than the sum of its proper divisors (1).

253444425134447 is an equidigital number, since it uses as much as digits as its factorization.

253444425134447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103219200, while the sum is 56.

Adding to 253444425134447 its reverse (744431524444352), we get a palindrome (997875949578799).

The spelling of 253444425134447 in words is "two hundred fifty-three trillion, four hundred forty-four billion, four hundred twenty-five million, one hundred thirty-four thousand, four hundred forty-seven".