224323025 has 24 divisors (see below), whose sum is σ = 305545920. Its totient is φ = 162613440.

The previous prime is 224323019. The next prime is 224323067. The reversal of 224323025 is 520323422.

It is a de Polignac number, because none of the positive numbers 2^k-224323025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 659 + ... + 21191.

It is an arithmetic number, because the mean of its divisors is an integer number (12731080).

Almost surely, 2^224323025 is an apocalyptic number.

224323025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224323025 is a deficient number, since it is larger than the sum of its proper divisors (81222895).

224323025 is a wasteful number, since it uses less digits than its factorization.

224323025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20585 (or 20580 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 224323025 is about 14977.4171671887. The cubic root of 224323025 is about 607.6095869412.

Adding to 224323025 its reverse (520323422), we get a palindrome (744646447).

The spelling of 224323025 in words is "two hundred twenty-four million, three hundred twenty-three thousand, twenty-five".