566521065 has 48 divisors (see below), whose sum is σ = 1084224960. Its totient is φ = 271347840.

The previous prime is 566521057. The next prime is 566521079. The reversal of 566521065 is 560125665.

It is a happy number.

It is not a de Polignac number, because 566521065 - 2³ = 566521057 is a prime.

It is a super-2 number, since 2×566521065² = 641892234177468450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34191 + ... + 47979.

It is an arithmetic number, because the mean of its divisors is an integer number (22588020).

Almost surely, 2^566521065 is an apocalyptic number.

566521065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

566521065 is a deficient number, since it is larger than the sum of its proper divisors (517703895).

566521065 is a wasteful number, since it uses less digits than its factorization.

566521065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13894 (or 13891 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 566521065 is about 23801.7029852908. The cubic root of 566521065 is about 827.4441457602. Note that the first 3 decimals are identical.

The spelling of 566521065 in words is "five hundred sixty-six million, five hundred twenty-one thousand, sixty-five".