Search a number
-
+
5665561 = 112112441
BaseRepresentation
bin10101100111001100011001
3101122211200121
4111213030121
52422244221
6321233241
766104446
oct25471431
911584617
105665561
11321a690
121a92821
131234a05
14a769cd
1576da41
hex567319

5665561 has 8 divisors (see below), whose sum is σ = 6212448. Its totient is φ = 5124000.

The previous prime is 5665559. The next prime is 5665571. The reversal of 5665561 is 1655665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5665561 - 21 = 5665559 is a prime.

5665561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5665531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101 + ... + 3541.

It is an arithmetic number, because the mean of its divisors is an integer number (776556).

Almost surely, 25665561 is an apocalyptic number.

It is an amenable number.

5665561 is a deficient number, since it is larger than the sum of its proper divisors (546887).

5665561 is a wasteful number, since it uses less digits than its factorization.

5665561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

The product of its digits is 27000, while the sum is 34.

The square root of 5665561 is about 2380.2438950662. The cubic root of 5665561 is about 178.2711119196.

It can be divided in two parts, 5665 and 561, that added together give a palindrome (6226).

The spelling of 5665561 in words is "five million, six hundred sixty-five thousand, five hundred sixty-one".

Divisors: 1 11 211 2321 2441 26851 515051 5665561