30255566 has 48 divisors (see below), whose sum is σ = 53370240. Its totient is φ = 12830400.

The previous prime is 30255553. The next prime is 30255569. The reversal of 30255566 is 66555203.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30255569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277520 + ... + 277628.

It is an arithmetic number, because the mean of its divisors is an integer number (1111880).

Almost surely, 2^30255566 is an apocalyptic number.

30255566 is a deficient number, since it is larger than the sum of its proper divisors (23114674).

30255566 is a wasteful number, since it uses less digits than its factorization.

30255566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 30255566 is about 5500.5059767261. The cubic root of 30255566 is about 311.6030935309.

The spelling of 30255566 in words is "thirty million, two hundred fifty-five thousand, five hundred sixty-six".