563291 has 4 divisors (see below), whose sum is σ = 566832. Its totient is φ = 559752.

The previous prime is 563287. The next prime is 563327. The reversal of 563291 is 192365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 563291 - 2² = 563287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 563291.

It is not an unprimeable number, because it can be changed into a prime (562291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (141708).

2⁵⁶³²⁹¹ is an apocalyptic number.

563291 is a deficient number, since it is larger than the sum of its proper divisors (3541).

563291 is a wasteful number, since it uses less digits than its factorization.

563291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its digits is 1620, while the sum is 26.

The square root of 563291 is about 750.5271480766. The cubic root of 563291 is about 82.5868567948.

The spelling of 563291 in words is "five hundred sixty-three thousand, two hundred ninety-one".