16395563 has 2 divisors, whose sum is σ = 16395564. Its totient is φ = 16395562.

The previous prime is 16395553. The next prime is 16395593. The reversal of 16395563 is 36559361.

It is a weak prime.

It is an emirp because it is prime and its reverse (36559361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16395563 - 2⁸ = 16395307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16395553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197781 + 8197782.

It is an arithmetic number, because the mean of its divisors is an integer number (8197782).

Almost surely, 2^16395563 is an apocalyptic number.

16395563 is a deficient number, since it is larger than the sum of its proper divisors (1).

16395563 is an equidigital number, since it uses as much as digits as its factorization.

16395563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 38.

The square root of 16395563 is about 4049.1434896778. The cubic root of 16395563 is about 254.0439039986.

The spelling of 16395563 in words is "sixteen million, three hundred ninety-five thousand, five hundred sixty-three".