30805552 has 20 divisors (see below), whose sum is σ = 60699240. Its totient is φ = 15141248.

The previous prime is 30805543. The next prime is 30805553. The reversal of 30805552 is 25550803.

It is a self number, because there is not a number n which added to its sum of digits gives 30805552.

It is not an unprimeable number, because it can be changed into a prime (30805553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15373 + ... + 17260.

It is an arithmetic number, because the mean of its divisors is an integer number (3034962).

Almost surely, 2^30805552 is an apocalyptic number.

It is an amenable number.

30805552 is a deficient number, since it is larger than the sum of its proper divisors (29893688).

30805552 is a wasteful number, since it uses less digits than its factorization.

30805552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32700 (or 32694 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 30805552 is about 5550.2749481445. The cubic root of 30805552 is about 313.4798751185.

The spelling of 30805552 in words is "thirty million, eight hundred five thousand, five hundred fifty-two".