224412505 has 4 divisors (see below), whose sum is σ = 269295012. Its totient is φ = 179530000.

The previous prime is 224412493. The next prime is 224412533. The reversal of 224412505 is 505214422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505214422 = 2 ⋅252607211.

It can be written as a sum of positive squares in 2 ways, for example, as 27206656 + 197205849 = 5216^2 + 14043^2 .

It is not a de Polignac number, because 224412505 - 2²⁷ = 90194777 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 224412505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22441246 + ... + 22441255.

It is an arithmetic number, because the mean of its divisors is an integer number (67323753).

Almost surely, 2^224412505 is an apocalyptic number.

It is an amenable number.

224412505 is a deficient number, since it is larger than the sum of its proper divisors (44882507).

224412505 is an equidigital number, since it uses as much as digits as its factorization.

224412505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44882506.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 224412505 is about 14980.4040332696. The cubic root of 224412505 is about 607.6903658067.

Adding to 224412505 its reverse (505214422), we get a palindrome (729626927).

The spelling of 224412505 in words is "two hundred twenty-four million, four hundred twelve thousand, five hundred five".