253544350013 has 4 divisors (see below), whose sum is σ = 253565283360. Its totient is φ = 253523416668.

The previous prime is 253544350001. The next prime is 253544350043. The reversal of 253544350013 is 310053445352.

It is a happy number.

253544350013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253544350013 - 2⁸ = 253544349757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253544350043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10448495 + ... + 10472732.

It is an arithmetic number, because the mean of its divisors is an integer number (63391320840).

Almost surely, 2^253544350013 is an apocalyptic number.

It is an amenable number.

253544350013 is a deficient number, since it is larger than the sum of its proper divisors (20933347).

253544350013 is a wasteful number, since it uses less digits than its factorization.

253544350013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20933346.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 253544350013 its reverse (310053445352), we get a palindrome (563597795365).

The spelling of 253544350013 in words is "two hundred fifty-three billion, five hundred forty-four million, three hundred fifty thousand, thirteen".