5632661 has 4 divisors (see below), whose sum is σ = 5964012. Its totient is φ = 5301312.

The previous prime is 5632651. The next prime is 5632687. The reversal of 5632661 is 1662365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1662365 = 5 ⋅332473.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 3352561 = 1510^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 5632661 - 2⁶ = 5632597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5632651) 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, 165650 + ... + 165683.

It is an arithmetic number, because the mean of its divisors is an integer number (1491003).

Almost surely, 2^5632661 is an apocalyptic number.

It is an amenable number.

5632661 is a deficient number, since it is larger than the sum of its proper divisors (331351).

5632661 is a wasteful number, since it uses less digits than its factorization.

5632661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331350.

The product of its digits is 6480, while the sum is 29.

The square root of 5632661 is about 2373.3227761937. The cubic root of 5632661 is about 177.9253674412.

The spelling of 5632661 in words is "five million, six hundred thirty-two thousand, six hundred sixty-one".