163957025 has 12 divisors (see below), whose sum is σ = 203622384. Its totient is φ = 130962000.

The previous prime is 163956997. The next prime is 163957043. The reversal of 163957025 is 520759361.

It is a happy number.

It is not a de Polignac number, because 163957025 - 2¹⁴ = 163940641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163957025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12530 + ... + 22020.

It is an arithmetic number, because the mean of its divisors is an integer number (16968532).

Almost surely, 2^163957025 is an apocalyptic number.

It is an amenable number.

163957025 is a deficient number, since it is larger than the sum of its proper divisors (39665359).

163957025 is an equidigital number, since it uses as much as digits as its factorization.

163957025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10192 (or 10187 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 163957025 is about 12804.5704730772. The cubic root of 163957025 is about 547.3225518365.

The spelling of 163957025 in words is "one hundred sixty-three million, nine hundred fifty-seven thousand, twenty-five".