163225504 has 96 divisors (see below), whose sum is σ = 369593280. Its totient is φ = 70336512.

The previous prime is 163225493. The next prime is 163225511. The reversal of 163225504 is 405522361.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845632 + ... + 845824.

It is an arithmetic number, because the mean of its divisors is an integer number (3849930).

Almost surely, 2^163225504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163225504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184796640).

163225504 is an abundant number, since it is smaller than the sum of its proper divisors (206367776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163225504 is a wasteful number, since it uses less digits than its factorization.

163225504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 163225504 is about 12775.9737006617. The cubic root of 163225504 is about 546.5073486427.

Adding to 163225504 its reverse (405522361), we get a palindrome (568747865).

The spelling of 163225504 in words is "one hundred sixty-three million, two hundred twenty-five thousand, five hundred four".