55541566 has 8 divisors (see below), whose sum is σ = 83454624. Its totient is φ = 27723360.

The previous prime is 55541561. The next prime is 55541599. The reversal of 55541566 is 66514555.

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 (55541561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22230 + ... + 24601.

It is an arithmetic number, because the mean of its divisors is an integer number (10431828).

Almost surely, 2^55541566 is an apocalyptic number.

55541566 is a deficient number, since it is larger than the sum of its proper divisors (27913058).

55541566 is a wasteful number, since it uses less digits than its factorization.

55541566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47426.

The product of its digits is 90000, while the sum is 37.

The square root of 55541566 is about 7452.6214179978. The cubic root of 55541566 is about 381.5393834087.

The spelling of 55541566 in words is "fifty-five million, five hundred forty-one thousand, five hundred sixty-six".