253043013405 has 64 divisors (see below), whose sum is σ = 500239692288. Its totient is φ = 106362961920.

The previous prime is 253043013383. The next prime is 253043013413. The reversal of 253043013405 is 504310340352.

It is not a de Polignac number, because 253043013405 - 2⁵ = 253043013373 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 9856 + ... + 711465.

It is an arithmetic number, because the mean of its divisors is an integer number (7816245192).

Almost surely, 2^253043013405 is an apocalyptic number.

It is an amenable number.

253043013405 is a deficient number, since it is larger than the sum of its proper divisors (247196678883).

253043013405 is a wasteful number, since it uses less digits than its factorization.

253043013405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721606.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 253043013405 its reverse (504310340352), we get a palindrome (757353353757).

The spelling of 253043013405 in words is "two hundred fifty-three billion, forty-three million, thirteen thousand, four hundred five".