5561812 has 12 divisors (see below), whose sum is σ = 9898560. Its totient is φ = 2733656.

The previous prime is 5561779. The next prime is 5561819. The reversal of 5561812 is 2181655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561819) 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, 11548 + ... + 12019.

It is an arithmetic number, because the mean of its divisors is an integer number (824880).

Almost surely, 2^5561812 is an apocalyptic number.

It is an amenable number.

5561812 is a deficient number, since it is larger than the sum of its proper divisors (4336748).

5561812 is a wasteful number, since it uses less digits than its factorization.

5561812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23630 (or 23628 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 5561812 is about 2358.3494227955. The cubic root of 5561812 is about 177.1762212316.

The spelling of 5561812 in words is "five million, five hundred sixty-one thousand, eight hundred twelve".