253455177361 has 2 divisors, whose sum is σ = 253455177362. Its totient is φ = 253455177360.

The previous prime is 253455177341. The next prime is 253455177397. The reversal of 253455177361 is 163771554352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244190152336 + 9265025025 = 494156^2 + 96255^2 .

It is a cyclic number.

It is not a de Polignac number, because 253455177361 - 2⁷ = 253455177233 is a prime.

It is not a weakly prime, because it can be changed into another prime (253455177341) 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, 126727588680 + 126727588681.

It is an arithmetic number, because the mean of its divisors is an integer number (126727588681).

Almost surely, 2^253455177361 is an apocalyptic number.

It is an amenable number.

253455177361 is a deficient number, since it is larger than the sum of its proper divisors (1).

253455177361 is an equidigital number, since it uses as much as digits as its factorization.

253455177361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646000, while the sum is 49.

The spelling of 253455177361 in words is "two hundred fifty-three billion, four hundred fifty-five million, one hundred seventy-seven thousand, three hundred sixty-one".