55843666 has 8 divisors (see below), whose sum is σ = 84377340. Its totient is φ = 27717888.

The previous prime is 55843663. The next prime is 55843729. The reversal of 55843666 is 66634855.

It can be written as a sum of positive squares in 2 ways, for example, as 51538041 + 4305625 = 7179^2 + 2075^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55843663) 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, 101631 + ... + 102178.

Almost surely, 2^55843666 is an apocalyptic number.

55843666 is a deficient number, since it is larger than the sum of its proper divisors (28533674).

55843666 is a wasteful number, since it uses less digits than its factorization.

55843666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203948.

The product of its digits is 518400, while the sum is 43.

The square root of 55843666 is about 7472.8619684830. The cubic root of 55843666 is about 382.2298854765.

The spelling of 55843666 in words is "fifty-five million, eight hundred forty-three thousand, six hundred sixty-six".