566678025 has 75 divisors (see below), whose sum is σ = 1097396311. Its totient is φ = 289087920.

The previous prime is 566678003. The next prime is 566678039. The reversal of 566678025 is 520876665.

The square root of 566678025 is 23805.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 204004089 + 362673936 = 14283^2 + 19044^2 .

It is a tau number, because it is divible by the number of its divisors (75).

It is not a de Polignac number, because 566678025 - 2⁷ = 566677897 is a prime.

It is a super-2 number, since 2×566678025² = 642247968035801250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 24638164 + ... + 24638186.

Almost surely, 2^566678025 is an apocalyptic number.

566678025 is the 23805-th square number.

566678025 is the 11903-rd centered octagonal number.

It is an amenable number.

566678025 is a deficient number, since it is larger than the sum of its proper divisors (530718286).

566678025 is an frugal number, since it uses more digits than its factorization.

566678025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The cubic root of 566678025 is about 827.5205557700.

The spelling of 566678025 in words is "five hundred sixty-six million, six hundred seventy-eight thousand, twenty-five".