163505552 has 30 divisors (see below), whose sum is σ = 368514918. Its totient is φ = 70073472.

The previous prime is 163505543. The next prime is 163505557. The reversal of 163505552 is 255505361.

It can be written as a sum of positive squares in only one way, i.e., 133079296 + 30426256 = 11536^2 + 5516^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163505557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103493 + ... + 105060.

Almost surely, 2^163505552 is an apocalyptic number.

It is an amenable number.

163505552 is an abundant number, since it is smaller than the sum of its proper divisors (205009366).

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

163505552 is a wasteful number, since it uses less digits than its factorization.

163505552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208575 (or 208562 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 163505552 is about 12786.9289510813. The cubic root of 163505552 is about 546.8197198523.

The spelling of 163505552 in words is "one hundred sixty-three million, five hundred five thousand, five hundred fifty-two".