253545323545343 has 2 divisors, whose sum is σ = 253545323545344. Its totient is φ = 253545323545342.

The previous prime is 253545323545301. The next prime is 253545323545417. The reversal of 253545323545343 is 343545323545352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253545323545343 - 2¹⁶ = 253545323479807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253545323515343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126772661772671 + 126772661772672.

It is an arithmetic number, because the mean of its divisors is an integer number (126772661772672).

Almost surely, 2^{253545323545343} is an apocalyptic number.

253545323545343 is a deficient number, since it is larger than the sum of its proper divisors (1).

253545323545343 is an equidigital number, since it uses as much as digits as its factorization.

253545323545343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400000, while the sum is 56.

Subtracting 253545323545343 from its reverse (343545323545352), we obtain a palindrome (90000000000009).

The spelling of 253545323545343 in words is "two hundred fifty-three trillion, five hundred forty-five billion, three hundred twenty-three million, five hundred forty-five thousand, three hundred forty-three".