565494 has 12 divisors (see below), whose sum is σ = 1134684. Its totient is φ = 187884.

The previous prime is 565489. The next prime is 565507. The reversal of 565494 is 494565.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

565494 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1689 + ... + 1995.

It is an arithmetic number, because the mean of its divisors is an integer number (94557).

2⁵⁶⁵⁴⁹⁴ is an apocalyptic number.

565494 is an abundant number, since it is smaller than the sum of its proper divisors (569190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

565494 is an equidigital number, since it uses as much as digits as its factorization.

565494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 312 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 565494 is about 751.9933510344. The cubic root of 565494 is about 82.6943809551.

Multiplying 565494 by its product of digits (21600), we get a square (12214670400 = 110520²).

The spelling of 565494 in words is "five hundred sixty-five thousand, four hundred ninety-four".