253943263069 has 2 divisors, whose sum is σ = 253943263070. Its totient is φ = 253943263068.

The previous prime is 253943263039. The next prime is 253943263111. The reversal of 253943263069 is 960362349352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251437059225 + 2506203844 = 501435^2 + 50062^2 .

It is a cyclic number.

It is not a de Polignac number, because 253943263069 - 2⁵ = 253943263037 is a prime.

It is a super-2 number, since 2×253943263069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253943263039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126971631534 + 126971631535.

It is an arithmetic number, because the mean of its divisors is an integer number (126971631535).

Almost surely, 2^253943263069 is an apocalyptic number.

It is an amenable number.

253943263069 is a deficient number, since it is larger than the sum of its proper divisors (1).

253943263069 is an equidigital number, since it uses as much as digits as its factorization.

253943263069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6298560, while the sum is 52.

The spelling of 253943263069 in words is "two hundred fifty-three billion, nine hundred forty-three million, two hundred sixty-three thousand, sixty-nine".