168425563 has 2 divisors, whose sum is σ = 168425564. Its totient is φ = 168425562.

The previous prime is 168425531. The next prime is 168425599. The reversal of 168425563 is 365524861.

168425563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168425563 - 2⁵ = 168425531 is a prime.

It is a super-3 number, since 3×168425563³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (168425513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84212781 + 84212782.

It is an arithmetic number, because the mean of its divisors is an integer number (84212782).

Almost surely, 2^168425563 is an apocalyptic number.

168425563 is a deficient number, since it is larger than the sum of its proper divisors (1).

168425563 is an equidigital number, since it uses as much as digits as its factorization.

168425563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 168425563 is about 12977.8874629117. The cubic root of 168425563 is about 552.2503535577.

The spelling of 168425563 in words is "one hundred sixty-eight million, four hundred twenty-five thousand, five hundred sixty-three".