163562225 has 6 divisors (see below), whose sum is σ = 202817190. Its totient is φ = 130849760.

The previous prime is 163562221. The next prime is 163562251. The reversal of 163562225 is 522265361.

It can be written as a sum of positive squares in 3 ways, for example, as 719104 + 162843121 = 848^2 + 12761^2 .

It is not a de Polignac number, because 163562225 - 2² = 163562221 is a prime.

It is a super-4 number, since 4×163562225⁴ (a number of 34 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163562191 and 163562200.

It is not an unprimeable number, because it can be changed into a prime (163562221) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3271220 + ... + 3271269.

It is an arithmetic number, because the mean of its divisors is an integer number (33802865).

Almost surely, 2^163562225 is an apocalyptic number.

It is an amenable number.

163562225 is a deficient number, since it is larger than the sum of its proper divisors (39254965).

163562225 is an equidigital number, since it uses as much as digits as its factorization.

163562225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542499 (or 6542494 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 163562225 is about 12789.1448111279. The cubic root of 163562225 is about 546.8828906617.

It can be divided in two parts, 16356 and 2225, that added together give a palindrome (18581).

The spelling of 163562225 in words is "one hundred sixty-three million, five hundred sixty-two thousand, two hundred twenty-five".