494907563 has 4 divisors (see below), whose sum is σ = 494955720. Its totient is φ = 494859408.

The previous prime is 494907557. The next prime is 494907571. The reversal of 494907563 is 365709494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 494907563 - 2²⁰ = 493858987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494907263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778 + ... + 31511.

It is an arithmetic number, because the mean of its divisors is an integer number (123738930).

Almost surely, 2^494907563 is an apocalyptic number.

494907563 is a deficient number, since it is larger than the sum of its proper divisors (48157).

494907563 is a wasteful number, since it uses less digits than its factorization.

494907563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48156.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 494907563 is about 22246.5179972058. The cubic root of 494907563 is about 790.9967459322.

The spelling of 494907563 in words is "four hundred ninety-four million, nine hundred seven thousand, five hundred sixty-three".