220494225 has 48 divisors (see below), whose sum is σ = 420036608. Its totient is φ = 99973440.

The previous prime is 220494193. The next prime is 220494229. The reversal of 220494225 is 522494022.

It is not a de Polignac number, because 220494225 - 2⁵ = 220494193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220494192 and 220494201.

It is not an unprimeable number, because it can be changed into a prime (220494229) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 65022 + ... + 68328.

Almost surely, 2^220494225 is an apocalyptic number.

220494225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220494225 is a deficient number, since it is larger than the sum of its proper divisors (199542383).

220494225 is a wasteful number, since it uses less digits than its factorization.

220494225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 220494225 is about 14849.0479492794. The cubic root of 220494225 is about 604.1327875308.

The spelling of 220494225 in words is "two hundred twenty million, four hundred ninety-four thousand, two hundred twenty-five".