253533914657 has 2 divisors, whose sum is σ = 253533914658. Its totient is φ = 253533914656.

The previous prime is 253533914581. The next prime is 253533914677. The reversal of 253533914657 is 756419335352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230562268561 + 22971646096 = 480169^2 + 151564^2 .

It is a cyclic number.

It is not a de Polignac number, because 253533914657 - 2²⁴ = 253517137441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253533914599 and 253533914608.

It is not a weakly prime, because it can be changed into another prime (253533914677) 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, 126766957328 + 126766957329.

It is an arithmetic number, because the mean of its divisors is an integer number (126766957329).

Almost surely, 2^253533914657 is an apocalyptic number.

It is an amenable number.

253533914657 is a deficient number, since it is larger than the sum of its proper divisors (1).

253533914657 is an equidigital number, since it uses as much as digits as its factorization.

253533914657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206000, while the sum is 53.

The spelling of 253533914657 in words is "two hundred fifty-three billion, five hundred thirty-three million, nine hundred fourteen thousand, six hundred fifty-seven".