30305505250 has 32 divisors (see below), whose sum is σ = 56895561216. Its totient is φ = 12087233200.

The previous prime is 30305505239. The next prime is 30305505259. The reversal of 30305505250 is 5250550303.

It is not an unprimeable number, because it can be changed into a prime (30305505259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87922 + ... + 261421.

It is an arithmetic number, because the mean of its divisors is an integer number (1777986288).

Almost surely, 2^30305505250 is an apocalyptic number.

30305505250 is a deficient number, since it is larger than the sum of its proper divisors (26590055966).

30305505250 is a wasteful number, since it uses less digits than its factorization.

30305505250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349707 (or 349697 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 28.

The spelling of 30305505250 in words is "thirty billion, three hundred five million, five hundred five thousand, two hundred fifty".