224555681249 has 4 divisors (see below), whose sum is σ = 224557588164. Its totient is φ = 224553774336.

The previous prime is 224555681239. The next prime is 224555681299. The reversal of 224555681249 is 942186555422.

It is a happy number.

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 59856069025 + 164699612224 = 244655^2 + 405832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224555681249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224555681249.

It is not an unprimeable number, because it can be changed into a prime (224555681209) 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, 764312 + ... + 1016505.

It is an arithmetic number, because the mean of its divisors is an integer number (56139397041).

Almost surely, 2^224555681249 is an apocalyptic number.

It is an amenable number.

224555681249 is a deficient number, since it is larger than the sum of its proper divisors (1906915).

224555681249 is a wasteful number, since it uses less digits than its factorization.

224555681249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906914.

The product of its digits is 6912000, while the sum is 53.

The spelling of 224555681249 in words is "two hundred twenty-four billion, five hundred fifty-five million, six hundred eighty-one thousand, two hundred forty-nine".