55485566 has 16 divisors (see below), whose sum is σ = 85379184. Its totient is φ = 27029184.

The previous prime is 55485559. The next prime is 55485589. The reversal of 55485566 is 66558455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57746 + ... + 58698.

It is an arithmetic number, because the mean of its divisors is an integer number (5336199).

Almost surely, 2^55485566 is an apocalyptic number.

55485566 is a deficient number, since it is larger than the sum of its proper divisors (29893618).

55485566 is a wasteful number, since it uses less digits than its factorization.

55485566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675.

The product of its digits is 720000, while the sum is 44.

The square root of 55485566 is about 7448.8634032314. The cubic root of 55485566 is about 381.4111107660.

The spelling of 55485566 in words is "fifty-five million, four hundred eighty-five thousand, five hundred sixty-six".