5253513205121 has 4 divisors (see below), whose sum is σ = 5253549341700. Its totient is φ = 5253477068544.

The previous prime is 5253513205103. The next prime is 5253513205159. The reversal of 5253513205121 is 1215023153525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 853960810000 + 4399552395121 = 924100^2 + 2097511^2 .

It is a cyclic number.

It is not a de Polignac number, because 5253513205121 - 2¹⁰ = 5253513204097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5253513805121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17849336 + ... + 18141273.

It is an arithmetic number, because the mean of its divisors is an integer number (1313387335425).

Almost surely, 2^{5253513205121} is an apocalyptic number.

It is an amenable number.

5253513205121 is a deficient number, since it is larger than the sum of its proper divisors (36136579).

5253513205121 is a wasteful number, since it uses less digits than its factorization.

5253513205121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36136578.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 5253513205121 its reverse (1215023153525), we get a palindrome (6468536358646).

The spelling of 5253513205121 in words is "five trillion, two hundred fifty-three billion, five hundred thirteen million, two hundred five thousand, one hundred twenty-one".