224340253 has 4 divisors (see below), whose sum is σ = 226861020. Its totient is φ = 221819488.

The previous prime is 224340227. The next prime is 224340271. The reversal of 224340253 is 352043422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352043422 = 2 ⋅176021711.

It can be written as a sum of positive squares in 2 ways, for example, as 82682649 + 141657604 = 9093^2 + 11902^2 .

It is a cyclic number.

It is not a de Polignac number, because 224340253 - 2¹³ = 224332061 is a prime.

It is a super-2 number, since 2×224340253² = 100657098232208018, which 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 (224340553) 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, 1260250 + ... + 1260427.

It is an arithmetic number, because the mean of its divisors is an integer number (56715255).

Almost surely, 2^224340253 is an apocalyptic number.

It is an amenable number.

224340253 is a deficient number, since it is larger than the sum of its proper divisors (2520767).

224340253 is an equidigital number, since it uses as much as digits as its factorization.

224340253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520766.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 224340253 is about 14977.9922886881. The cubic root of 224340253 is about 607.6251413410.

Adding to 224340253 its reverse (352043422), we get a palindrome (576383675).

The spelling of 224340253 in words is "two hundred twenty-four million, three hundred forty thousand, two hundred fifty-three".