635244225113 has 4 divisors (see below), whose sum is σ = 635246811300. Its totient is φ = 635241638928.

The previous prime is 635244225073. The next prime is 635244225131. The reversal of 635244225113 is 311522442536.

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 516575687824 + 118668537289 = 718732^2 + 344483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-635244225113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (635244225193) 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, 880838 + ... + 1430511.

It is an arithmetic number, because the mean of its divisors is an integer number (158811702825).

Almost surely, 2^635244225113 is an apocalyptic number.

It is an amenable number.

635244225113 is a deficient number, since it is larger than the sum of its proper divisors (2586187).

635244225113 is a wasteful number, since it uses less digits than its factorization.

635244225113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586186.

The product of its digits is 172800, while the sum is 38.

Adding to 635244225113 its reverse (311522442536), we get a palindrome (946766667649).

The spelling of 635244225113 in words is "six hundred thirty-five billion, two hundred forty-four million, two hundred twenty-five thousand, one hundred thirteen".