566545520 has 80 divisors (see below), whose sum is σ = 1361162880. Its totient is φ = 219174912.

The previous prime is 566545459. The next prime is 566545523. The reversal of 566545520 is 25545665.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×566545520³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566545523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333794 + ... + 335486.

It is an arithmetic number, because the mean of its divisors is an integer number (17014536).

Almost surely, 2^566545520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566545520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680581440).

566545520 is an abundant number, since it is smaller than the sum of its proper divisors (794617360).

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

566545520 is a wasteful number, since it uses less digits than its factorization.

566545520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 566545520 is about 23802.2167034921. The cubic root of 566545520 is about 827.4560516754.

The spelling of 566545520 in words is "five hundred sixty-six million, five hundred forty-five thousand, five hundred twenty".