253531515113 has 4 divisors (see below), whose sum is σ = 253595753040. Its totient is φ = 253467277188.

The previous prime is 253531515103. The next prime is 253531515173. The reversal of 253531515113 is 311515135352.

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 253531515113 - 2²⁰ = 253530466537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253531515103) 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, 32113043 + ... + 32120936.

It is an arithmetic number, because the mean of its divisors is an integer number (63398938260).

Almost surely, 2^253531515113 is an apocalyptic number.

It is an amenable number.

253531515113 is a deficient number, since it is larger than the sum of its proper divisors (64237927).

253531515113 is an equidigital number, since it uses as much as digits as its factorization.

253531515113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64237926.

The product of its digits is 33750, while the sum is 35.

The spelling of 253531515113 in words is "two hundred fifty-three billion, five hundred thirty-one million, five hundred fifteen thousand, one hundred thirteen".