253323555169 has 2 divisors, whose sum is σ = 253323555170. Its totient is φ = 253323555168.

The previous prime is 253323555157. The next prime is 253323555271. The reversal of 253323555169 is 961555323352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249012976144 + 4310579025 = 499012^2 + 65655^2 .

It is a cyclic number.

It is not a de Polignac number, because 253323555169 - 2²⁷ = 253189337441 is a prime.

It is a super-2 number, since 2×253323555169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253323555109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126661777584 + 126661777585.

It is an arithmetic number, because the mean of its divisors is an integer number (126661777585).

Almost surely, 2^253323555169 is an apocalyptic number.

It is an amenable number.

253323555169 is a deficient number, since it is larger than the sum of its proper divisors (1).

253323555169 is an equidigital number, since it uses as much as digits as its factorization.

253323555169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3645000, while the sum is 49.

The spelling of 253323555169 in words is "two hundred fifty-three billion, three hundred twenty-three million, five hundred fifty-five thousand, one hundred sixty-nine".