494190563 has 2 divisors, whose sum is σ = 494190564. Its totient is φ = 494190562.

The previous prime is 494190547. The next prime is 494190643. The reversal of 494190563 is 365091494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494190563 - 2⁴ = 494190547 is a prime.

It is a Sophie Germain prime.

It is equal to p_26065697 and since 494190563 and 26065697 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494190563.

It is not a weakly prime, because it can be changed into another prime (494190533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247095281 + 247095282.

It is an arithmetic number, because the mean of its divisors is an integer number (247095282).

Almost surely, 2^494190563 is an apocalyptic number.

494190563 is a deficient number, since it is larger than the sum of its proper divisors (1).

494190563 is an equidigital number, since it uses as much as digits as its factorization.

494190563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 494190563 is about 22230.3972749027. The cubic root of 494190563 is about 790.6145743817.

The spelling of 494190563 in words is "four hundred ninety-four million, one hundred ninety thousand, five hundred sixty-three".