252411543403309 has 2 divisors, whose sum is σ = 252411543403310. Its totient is φ = 252411543403308.

The previous prime is 252411543403303. The next prime is 252411543403391. The reversal of 252411543403309 is 903304345114252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191781229220100 + 60630314183209 = 13848510^2 + 7786547^2 .

It is a cyclic number.

It is not a de Polignac number, because 252411543403309 - 2¹⁵ = 252411543370541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252411543403303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126205771701654 + 126205771701655.

It is an arithmetic number, because the mean of its divisors is an integer number (126205771701655).

Almost surely, 2^{252411543403309} is an apocalyptic number.

It is an amenable number.

252411543403309 is a deficient number, since it is larger than the sum of its proper divisors (1).

252411543403309 is an equidigital number, since it uses as much as digits as its factorization.

252411543403309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 252411543403309 in words is "two hundred fifty-two trillion, four hundred eleven billion, five hundred forty-three million, four hundred three thousand, three hundred nine".