30305250549 has 96 divisors (see below), whose sum is σ = 55545834240. Its totient is φ = 16225864704.

The previous prime is 30305250541. The next prime is 30305250571. The reversal of 30305250549 is 94505250303.

30305250549 is a `hidden beast` number, since 30 + 30 + 5 + 2 + 50 + 549 = 666.

It is not a de Polignac number, because 30305250549 - 2³ = 30305250541 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305250541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5237512 + ... + 5243294.

It is an arithmetic number, because the mean of its divisors is an integer number (578602440).

Almost surely, 2^30305250549 is an apocalyptic number.

It is an amenable number.

30305250549 is a deficient number, since it is larger than the sum of its proper divisors (25240583691).

30305250549 is a wasteful number, since it uses less digits than its factorization.

30305250549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056 (or 6043 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 30305250549 in words is "thirty billion, three hundred five million, two hundred fifty thousand, five hundred forty-nine".