253323555109 has 2 divisors, whose sum is σ = 253323555110. Its totient is φ = 253323555108.

The previous prime is 253323555103. The next prime is 253323555157. The reversal of 253323555109 is 901555323352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130788552609 + 122535002500 = 361647^2 + 350050^2 .

It is a cyclic number.

It is not a de Polignac number, because 253323555109 - 2¹¹ = 253323553061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253323555103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126661777554 + 126661777555.

It is an arithmetic number, because the mean of its divisors is an integer number (126661777555).

Almost surely, 2^253323555109 is an apocalyptic number.

It is an amenable number.

253323555109 is a deficient number, since it is larger than the sum of its proper divisors (1).

253323555109 is an equidigital number, since it uses as much as digits as its factorization.

253323555109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 607500, while the sum is 43.

The spelling of 253323555109 in words is "two hundred fifty-three billion, three hundred twenty-three million, five hundred fifty-five thousand, one hundred nine".