5561806 has 8 divisors (see below), whose sum is σ = 8363880. Its totient is φ = 2773848.

The previous prime is 5561779. The next prime is 5561819. The reversal of 5561806 is 6081655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481 + ... + 4156.

It is an arithmetic number, because the mean of its divisors is an integer number (1045485).

Almost surely, 2^5561806 is an apocalyptic number.

5561806 is a deficient number, since it is larger than the sum of its proper divisors (2802074).

5561806 is a wasteful number, since it uses less digits than its factorization.

5561806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5561806 is about 2358.3481507191. The cubic root of 5561806 is about 177.1761575199.

The spelling of 5561806 in words is "five million, five hundred sixty-one thousand, eight hundred six".