30205105250 has 32 divisors (see below), whose sum is σ = 56652730992. Its totient is φ = 12058800000.

The previous prime is 30205105193. The next prime is 30205105261. The reversal of 30205105250 is 5250150203.

It can be written as a sum of positive squares in 8 ways, for example, as 2387201881 + 27817903369 = 48859^2 + 166787^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14300 + ... + 246200.

Almost surely, 2^30205105250 is an apocalyptic number.

30205105250 is a deficient number, since it is larger than the sum of its proper divisors (26447625742).

30205105250 is a wasteful number, since it uses less digits than its factorization.

30205105250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232439 (or 232429 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

Adding to 30205105250 its reverse (5250150203), we get a palindrome (35455255453).

The spelling of 30205105250 in words is "thirty billion, two hundred five million, one hundred five thousand, two hundred fifty".