563540 has 24 divisors (see below), whose sum is σ = 1246560. Its totient is φ = 213408.

The previous prime is 563503. The next prime is 563543. The reversal of 563540 is 45365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563543) by changing a digit.

563540 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 7 ways as a sum of consecutive naturals, for example, 362 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (51940).

2⁵⁶³⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

563540 is an abundant number, since it is smaller than the sum of its proper divisors (683020).

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

563540 is a wasteful number, since it uses less digits than its factorization.

563540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 563540 is about 750.6930131552. The cubic root of 563540 is about 82.5990240393.

The spelling of 563540 in words is "five hundred sixty-three thousand, five hundred forty".