163925057 has 2 divisors, whose sum is σ = 163925058. Its totient is φ = 163925056.

The previous prime is 163925039. The next prime is 163925087. The reversal of 163925057 is 750529361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149719696 + 14205361 = 12236^2 + 3769^2 .

It is an emirp because it is prime and its reverse (750529361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163925057 - 2¹⁴ = 163908673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163925057.

It is not a weakly prime, because it can be changed into another prime (163925087) by changing a digit.

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 as a sum of consecutive naturals, namely, 81962528 + 81962529.

It is an arithmetic number, because the mean of its divisors is an integer number (81962529).

Almost surely, 2^163925057 is an apocalyptic number.

It is an amenable number.

163925057 is a deficient number, since it is larger than the sum of its proper divisors (1).

163925057 is an equidigital number, since it uses as much as digits as its factorization.

163925057 is an odious number, because the sum of its binary digits is odd.

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

The square root of 163925057 is about 12803.3221079531. The cubic root of 163925057 is about 547.2869775864.

The spelling of 163925057 in words is "one hundred sixty-three million, nine hundred twenty-five thousand, fifty-seven".