5561345 has 4 divisors (see below), whose sum is σ = 6673620. Its totient is φ = 4449072.

The previous prime is 5561341. The next prime is 5561371. The reversal of 5561345 is 5431655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5431655 = 5 ⋅1086331.

It can be written as a sum of positive squares in 2 ways, for example, as 2238016 + 3323329 = 1496^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561345 - 2² = 5561341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5561341) 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, 556130 + ... + 556139.

It is an arithmetic number, because the mean of its divisors is an integer number (1668405).

Almost surely, 2^5561345 is an apocalyptic number.

It is an amenable number.

5561345 is a deficient number, since it is larger than the sum of its proper divisors (1112275).

5561345 is a wasteful number, since it uses less digits than its factorization.

5561345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112274.

The product of its digits is 9000, while the sum is 29.

The square root of 5561345 is about 2358.2504107919. The cubic root of 5561345 is about 177.1712621996.

The spelling of 5561345 in words is "five million, five hundred sixty-one thousand, three hundred forty-five".