253812695513 has 4 divisors (see below), whose sum is σ = 273336749028. Its totient is φ = 234288642000.

The previous prime is 253812695491. The next prime is 253812695527. The reversal of 253812695513 is 315596218352.

253812695513 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.

It can be written as a sum of positive squares in 2 ways, for example, as 18366483529 + 235446211984 = 135523^2 + 485228^2 .

It is a cyclic number.

It is not a de Polignac number, because 253812695513 - 2¹⁴ = 253812679129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253812695413) 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, 9762026738 + ... + 9762026763.

It is an arithmetic number, because the mean of its divisors is an integer number (68334187257).

Almost surely, 2^253812695513 is an apocalyptic number.

It is an amenable number.

253812695513 is a deficient number, since it is larger than the sum of its proper divisors (19524053515).

253812695513 is a wasteful number, since it uses less digits than its factorization.

253812695513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19524053514.

The product of its digits is 1944000, while the sum is 50.

The spelling of 253812695513 in words is "two hundred fifty-three billion, eight hundred twelve million, six hundred ninety-five thousand, five hundred thirteen".