163355325 has 24 divisors (see below), whose sum is σ = 308664768. Its totient is φ = 74676480.

The previous prime is 163355303. The next prime is 163355327. The reversal of 163355325 is 523553361.

It is not a de Polignac number, because 163355325 - 2²⁴ = 146578109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163355327) 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 23 ways as a sum of consecutive naturals, for example, 155052 + ... + 156101.

It is an arithmetic number, because the mean of its divisors is an integer number (12861032).

Almost surely, 2^163355325 is an apocalyptic number.

163355325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163355325 is a deficient number, since it is larger than the sum of its proper divisors (145309443).

163355325 is a wasteful number, since it uses less digits than its factorization.

163355325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311173 (or 311168 counting only the distinct ones).

The product of its digits is 40500, while the sum is 33.

The square root of 163355325 is about 12781.0533603455. The cubic root of 163355325 is about 546.6521980026.

The spelling of 163355325 in words is "one hundred sixty-three million, three hundred fifty-five thousand, three hundred twenty-five".