163425504 has 96 divisors (see below), whose sum is σ = 472227840. Its totient is φ = 49484160.

The previous prime is 163425481. The next prime is 163425547. The reversal of 163425504 is 405524361.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 127137 + ... + 128415.

It is an arithmetic number, because the mean of its divisors is an integer number (4919040).

Almost surely, 2^163425504 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 163425504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236113920).

163425504 is an abundant number, since it is smaller than the sum of its proper divisors (308802336).

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

163425504 is a wasteful number, since it uses less digits than its factorization.

163425504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 163425504 is about 12783.7984965346. The cubic root of 163425504 is about 546.7304691214.

Adding to 163425504 its reverse (405524361), we get a palindrome (568949865).

The spelling of 163425504 in words is "one hundred sixty-three million, four hundred twenty-five thousand, five hundred four".