5612561 has 4 divisors (see below), whose sum is σ = 5637300. Its totient is φ = 5587824.

The previous prime is 5612557. The next prime is 5612569. The reversal of 5612561 is 1652165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1652165 = 5 ⋅330433.

It can be written as a sum of positive squares in 2 ways, for example, as 5202961 + 409600 = 2281^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 5612561 - 2² = 5612557 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5612561.

It is not an unprimeable number, because it can be changed into a prime (5612569) 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, 12026 + ... + 12483.

It is an arithmetic number, because the mean of its divisors is an integer number (1409325).

Almost surely, 2^5612561 is an apocalyptic number.

It is an amenable number.

5612561 is a deficient number, since it is larger than the sum of its proper divisors (24739).

5612561 is a wasteful number, since it uses less digits than its factorization.

5612561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24738.

The product of its digits is 1800, while the sum is 26.

The square root of 5612561 is about 2369.0844223033. The cubic root of 5612561 is about 177.7134745594.

The spelling of 5612561 in words is "five million, six hundred twelve thousand, five hundred sixty-one".