5956561 has 4 divisors (see below), whose sum is σ = 6414772. Its totient is φ = 5498352.

The previous prime is 5956549. The next prime is 5956591. The reversal of 5956561 is 1656595.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1656595 = 5 ⋅331319.

It can be written as a sum of positive squares in 2 ways, for example, as 3083536 + 2873025 = 1756^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 5956561 - 2¹¹ = 5954513 is a prime.

5956561 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5956561.

It is not an unprimeable number, because it can be changed into a prime (5956541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229086 + ... + 229111.

It is an arithmetic number, because the mean of its divisors is an integer number (1603693).

Almost surely, 2^5956561 is an apocalyptic number.

It is an amenable number.

5956561 is a deficient number, since it is larger than the sum of its proper divisors (458211).

5956561 is a wasteful number, since it uses less digits than its factorization.

5956561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458210.

The product of its digits is 40500, while the sum is 37.

The square root of 5956561 is about 2440.6066868711. The cubic root of 5956561 is about 181.2724750568.

The spelling of 5956561 in words is "five million, nine hundred fifty-six thousand, five hundred sixty-one".