220285425 has 24 divisors (see below), whose sum is σ = 365058976. Its totient is φ = 117210240.

The previous prime is 220285397. The next prime is 220285427. The reversal of 220285425 is 524582022.

It is not a de Polignac number, because 220285425 - 2⁶ = 220285361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220285392 and 220285401.

It is not an unprimeable number, because it can be changed into a prime (220285427) 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 23 ways as a sum of consecutive naturals, for example, 31062 + ... + 37488.

Almost surely, 2^220285425 is an apocalyptic number.

220285425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220285425 is a deficient number, since it is larger than the sum of its proper divisors (144773551).

220285425 is a wasteful number, since it uses less digits than its factorization.

220285425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897 (or 6892 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 220285425 is about 14842.0155302439. The cubic root of 220285425 is about 603.9420300562.

The spelling of 220285425 in words is "two hundred twenty million, two hundred eighty-five thousand, four hundred twenty-five".