563422491 has 24 divisors (see below), whose sum is σ = 822182400. Its totient is φ = 371780736.

The previous prime is 563422487. The next prime is 563422553. The reversal of 563422491 is 194224365.

It is a happy number.

563422491 is a `hidden beast` number, since 563 + 4 + 2 + 2 + 4 + 91 = 666.

It is not a de Polignac number, because 563422491 - 2² = 563422487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (563422471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513055 + ... + 514151.

It is an arithmetic number, because the mean of its divisors is an integer number (34257600).

Almost surely, 2^563422491 is an apocalyptic number.

563422491 is a deficient number, since it is larger than the sum of its proper divisors (258759909).

563422491 is a wasteful number, since it uses less digits than its factorization.

563422491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1632 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 563422491 is about 23736.5223021402. The cubic root of 563422491 is about 825.9328247504.

The spelling of 563422491 in words is "five hundred sixty-three million, four hundred twenty-two thousand, four hundred ninety-one".