55554666 has 16 divisors (see below), whose sum is σ = 114693888. Its totient is φ = 17920800.

The previous prime is 55554661. The next prime is 55554673. The reversal of 55554666 is 66645555.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55554661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149155 + ... + 149526.

It is an arithmetic number, because the mean of its divisors is an integer number (7168368).

Almost surely, 2^55554666 is an apocalyptic number.

55554666 is an abundant number, since it is smaller than the sum of its proper divisors (59139222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55554666 is a wasteful number, since it uses less digits than its factorization.

55554666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298717.

The product of its digits is 540000, while the sum is 42.

The square root of 55554666 is about 7453.5002515597. The cubic root of 55554666 is about 381.5693775997.

The spelling of 55554666 in words is "fifty-five million, five hundred fifty-four thousand, six hundred sixty-six".