54840666 has 16 divisors (see below), whose sum is σ = 111184704. Its totient is φ = 18029664.

The previous prime is 54840641. The next prime is 54840713. The reversal of 54840666 is 66604845.

54840666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62166 + ... + 63041.

It is an arithmetic number, because the mean of its divisors is an integer number (6949044).

Almost surely, 2^54840666 is an apocalyptic number.

54840666 is an abundant number, since it is smaller than the sum of its proper divisors (56344038).

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

54840666 is a wasteful number, since it uses less digits than its factorization.

54840666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125285.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 54840666 is about 7405.4483996582. The cubic root of 54840666 is about 379.9276547410.

It can be divided in two parts, 548 and 40666, that added together give a palindrome (41214).

The spelling of 54840666 in words is "fifty-four million, eight hundred forty thousand, six hundred sixty-six".