224936821513 has 4 divisors (see below), whose sum is σ = 227464201620. Its totient is φ = 222409441408.

The previous prime is 224936821489. The next prime is 224936821519. The reversal of 224936821513 is 315128639422.

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 102417920784 + 122518900729 = 320028^2 + 350027^2 .

It is a cyclic number.

It is not a de Polignac number, because 224936821513 - 2⁹ = 224936821001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224936821519) 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, 1263689920 + ... + 1263690097.

It is an arithmetic number, because the mean of its divisors is an integer number (56866050405).

Almost surely, 2^224936821513 is an apocalyptic number.

It is an amenable number.

224936821513 is a deficient number, since it is larger than the sum of its proper divisors (2527380107).

224936821513 is an equidigital number, since it uses as much as digits as its factorization.

224936821513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527380106.

The product of its digits is 622080, while the sum is 46.

The spelling of 224936821513 in words is "two hundred twenty-four billion, nine hundred thirty-six million, eight hundred twenty-one thousand, five hundred thirteen".