253455177397 has 2 divisors, whose sum is σ = 253455177398. Its totient is φ = 253455177396.

The previous prime is 253455177361. The next prime is 253455177461. The reversal of 253455177397 is 793771554352.

253455177397 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 can be written as a sum of positive squares in only one way, i.e., 240689341201 + 12765836196 = 490601^2 + 112986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253455177397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253455177697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126727588698 + 126727588699.

It is an arithmetic number, because the mean of its divisors is an integer number (126727588699).

Almost surely, 2^253455177397 is an apocalyptic number.

It is an amenable number.

253455177397 is a deficient number, since it is larger than the sum of its proper divisors (1).

253455177397 is an equidigital number, since it uses as much as digits as its factorization.

253455177397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27783000, while the sum is 58.

The spelling of 253455177397 in words is "two hundred fifty-three billion, four hundred fifty-five million, one hundred seventy-seven thousand, three hundred ninety-seven".