220435625 has 30 divisors (see below), whose sum is σ = 291014658. Its totient is φ = 166896000.

The previous prime is 220435613. The next prime is 220435643. The reversal of 220435625 is 526534022.

It can be written as a sum of positive squares in 5 ways, for example, as 35366809 + 185068816 = 5947^2 + 13604^2 .

It is not a de Polignac number, because 220435625 - 2¹² = 220431529 is a prime.

It is a Duffinian number.

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 29 ways as a sum of consecutive naturals, for example, 225137 + ... + 226113.

Almost surely, 2^220435625 is an apocalyptic number.

220435625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220435625 is a deficient number, since it is larger than the sum of its proper divisors (70579033).

220435625 is an frugal number, since it uses more digits than its factorization.

220435625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 220435625 is about 14847.0746276834. The cubic root of 220435625 is about 604.0792633504.

Adding to 220435625 its reverse (526534022), we get a palindrome (746969647).

The spelling of 220435625 in words is "two hundred twenty million, four hundred thirty-five thousand, six hundred twenty-five".