55356566 has 8 divisors (see below), whose sum is σ = 84966024. Its totient is φ = 27034560.

The previous prime is 55356541. The next prime is 55356569. The reversal of 55356566 is 66565355.

55356566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55356569) 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, 321755 + ... + 321926.

It is an arithmetic number, because the mean of its divisors is an integer number (10620753).

Almost surely, 2^55356566 is an apocalyptic number.

55356566 is a deficient number, since it is larger than the sum of its proper divisors (29609458).

55356566 is a wasteful number, since it uses less digits than its factorization.

55356566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643726.

The product of its digits is 405000, while the sum is 41.

The square root of 55356566 is about 7440.1993252869. The cubic root of 55356566 is about 381.1152968179.

The spelling of 55356566 in words is "fifty-five million, three hundred fifty-six thousand, five hundred sixty-six".