5566261 has 4 divisors (see below), whose sum is σ = 5636800. Its totient is φ = 5495724.

The previous prime is 5566241. The next prime is 5566271. The reversal of 5566261 is 1626655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5566261 - 2⁷ = 5566133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5566241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35151 + ... + 35308.

It is an arithmetic number, because the mean of its divisors is an integer number (1409200).

Almost surely, 2^5566261 is an apocalyptic number.

It is an amenable number.

5566261 is a deficient number, since it is larger than the sum of its proper divisors (70539).

5566261 is an equidigital number, since it uses as much as digits as its factorization.

5566261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70538.

The product of its digits is 10800, while the sum is 31.

The square root of 5566261 is about 2359.2924786893. The cubic root of 5566261 is about 177.2234508587.

The spelling of 5566261 in words is "five million, five hundred sixty-six thousand, two hundred sixty-one".