5665825 has 18 divisors (see below), whose sum is σ = 7726502. Its totient is φ = 4118400.

The previous prime is 5665789. The next prime is 5665837. The reversal of 5665825 is 5285665.

It can be written as a sum of positive squares in 3 ways, for example, as 20449 + 5645376 = 143^2 + 2376^2 .

It is not a de Polignac number, because 5665825 - 2⁹ = 5665313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2089 + ... + 3961.

Almost surely, 2^5665825 is an apocalyptic number.

5665825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5665825 is a deficient number, since it is larger than the sum of its proper divisors (2060677).

5665825 is a wasteful number, since it uses less digits than its factorization.

5665825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1889 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 5665825 is about 2380.2993509221. The cubic root of 5665825 is about 178.2738808623.

The spelling of 5665825 in words is "five million, six hundred sixty-five thousand, eight hundred twenty-five".