224945653 has 4 divisors (see below), whose sum is σ = 225152928. Its totient is φ = 224738380.

The previous prime is 224945629. The next prime is 224945657. The reversal of 224945653 is 356549422.

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, and also an emirpimes, since its reverse is a distinct semiprime: 356549422 = 2 ⋅178274711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224945653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224945657) 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, 102001 + ... + 104182.

It is an arithmetic number, because the mean of its divisors is an integer number (56288232).

Almost surely, 2^224945653 is an apocalyptic number.

It is an amenable number.

224945653 is a deficient number, since it is larger than the sum of its proper divisors (207275).

224945653 is a wasteful number, since it uses less digits than its factorization.

224945653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207274.

The product of its digits is 259200, while the sum is 40.

The square root of 224945653 is about 14998.1883239277. The cubic root of 224945653 is about 608.1712253278.

The spelling of 224945653 in words is "two hundred twenty-four million, nine hundred forty-five thousand, six hundred fifty-three".