253013271613 has 4 divisors (see below), whose sum is σ = 255252327228. Its totient is φ = 250774216000.

The previous prime is 253013271587. The next prime is 253013271619. The reversal of 253013271613 is 316172310352.

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 10675642329 + 242337629284 = 103323^2 + 492278^2 .

It is a cyclic number.

It is not a de Polignac number, because 253013271613 - 2⁹ = 253013271101 is a prime.

It is a super-2 number, since 2×253013271613² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253013271619) 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, 1119527638 + ... + 1119527863.

It is an arithmetic number, because the mean of its divisors is an integer number (63813081807).

Almost surely, 2^253013271613 is an apocalyptic number.

It is an amenable number.

253013271613 is a deficient number, since it is larger than the sum of its proper divisors (2239055615).

253013271613 is a wasteful number, since it uses less digits than its factorization.

253013271613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239055614.

The product of its (nonzero) digits is 22680, while the sum is 34.

Adding to 253013271613 its reverse (316172310352), we get a palindrome (569185581965).

The spelling of 253013271613 in words is "two hundred fifty-three billion, thirteen million, two hundred seventy-one thousand, six hundred thirteen".