253340043353 has 6 divisors (see below), whose sum is σ = 261775925082. Its totient is φ = 245167782960.

The previous prime is 253340043241. The next prime is 253340043377. The reversal of 253340043353 is 353340043352.

It can be written as a sum of positive squares in only one way, i.e., 197422928329 + 55917115024 = 444323^2 + 236468^2 .

It is not a de Polignac number, because 253340043353 - 2¹⁴ = 253340026969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253340043553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131809676 + ... + 131811597.

It is an arithmetic number, because the mean of its divisors is an integer number (43629320847).

Almost surely, 2^253340043353 is an apocalyptic number.

It is an amenable number.

253340043353 is a deficient number, since it is larger than the sum of its proper divisors (8435881729).

253340043353 is an equidigital number, since it uses as much as digits as its factorization.

253340043353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263621335 (or 263621304 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 35.

Subtracting 253340043353 from its reverse (353340043352), we obtain a palindrome (99999999999).

The spelling of 253340043353 in words is "two hundred fifty-three billion, three hundred forty million, forty-three thousand, three hundred fifty-three".