163525 has 12 divisors (see below), whose sum is σ = 210304. Its totient is φ = 126000.

The previous prime is 163517. The next prime is 163543. The reversal of 163525 is 525361.

It is a happy number.

It is not a de Polignac number, because 163525 - 2³ = 163517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163496 and 163505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670 + ... + 880.

163525 is a Friedman number, since it can be written as (2^15-63)*5, using all its digits and the basic arithmetic operations.

2¹⁶³⁵²⁵ is an apocalyptic number.

It is an amenable number.

163525 is a deficient number, since it is larger than the sum of its proper divisors (46779).

163525 is a wasteful number, since it uses less digits than its factorization.

163525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 163525 is about 404.3822449119. The cubic root of 163525 is about 54.6841399296.

Adding to 163525 its reverse (525361), we get a palindrome (688886).

The spelling of 163525 in words is "one hundred sixty-three thousand, five hundred twenty-five".