220224425 has 12 divisors (see below), whose sum is σ = 284952000. Its totient is φ = 168519120.

The previous prime is 220224419. The next prime is 220224461. The reversal of 220224425 is 524422022.

It is not a de Polignac number, because 220224425 - 2¹⁴ = 220208041 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220224425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190925 + ... + 192074.

It is an arithmetic number, because the mean of its divisors is an integer number (23746000).

Almost surely, 2^220224425 is an apocalyptic number.

220224425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220224425 is a deficient number, since it is larger than the sum of its proper divisors (64727575).

220224425 is a wasteful number, since it uses less digits than its factorization.

220224425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383032 (or 383027 counting only the distinct ones).

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

The square root of 220224425 is about 14839.9604109984. The cubic root of 220224425 is about 603.8862783500.

Adding to 220224425 its reverse (524422022), we get a palindrome (744646447).

The spelling of 220224425 in words is "two hundred twenty million, two hundred twenty-four thousand, four hundred twenty-five".