224404025 has 12 divisors (see below), whose sum is σ = 280038252. Its totient is φ = 178376640.

The previous prime is 224404013. The next prime is 224404027. The reversal of 224404025 is 520404422.

It can be written as a sum of positive squares in 6 ways, for example, as 512656 + 223891369 = 716^2 + 14963^2 .

It is not a de Polignac number, because 224404025 - 2¹⁶ = 224338489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224404027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24662 + ... + 32511.

It is an arithmetic number, because the mean of its divisors is an integer number (23336521).

Almost surely, 2^224404025 is an apocalyptic number.

224404025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224404025 is a deficient number, since it is larger than the sum of its proper divisors (55634227).

224404025 is a wasteful number, since it uses less digits than its factorization.

224404025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57340 (or 57335 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 224404025 is about 14980.1209941709. The cubic root of 224404025 is about 607.6827113325.

Adding to 224404025 its reverse (520404422), we get a palindrome (744808447).

The spelling of 224404025 in words is "two hundred twenty-four million, four hundred four thousand, twenty-five".