30255666 has 16 divisors (see below), whose sum is σ = 69155904. Its totient is φ = 8644464.

The previous prime is 30255647. The next prime is 30255679. The reversal of 30255666 is 66655203.

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, 360145 + ... + 360228.

It is an arithmetic number, because the mean of its divisors is an integer number (4322244).

Almost surely, 2^30255666 is an apocalyptic number.

30255666 is an abundant number, since it is smaller than the sum of its proper divisors (38900238).

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

30255666 is a wasteful number, since it uses less digits than its factorization.

30255666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720385.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 30255666 is about 5500.5150667915. The cubic root of 30255666 is about 311.6034368316.

The spelling of 30255666 in words is "thirty million, two hundred fifty-five thousand, six hundred sixty-six".