30500555000 has 40 divisors (see below), whose sum is σ = 71462812080. Its totient is φ = 12200220000.

The previous prime is 30500554943. The next prime is 30500555009. The reversal of 30500555000 is 55500503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500555009) 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 9 ways as a sum of consecutive naturals, for example, 3045056 + ... + 3055055.

It is an arithmetic number, because the mean of its divisors is an integer number (1786570302).

Almost surely, 2^30500555000 is an apocalyptic number.

It is an amenable number.

30500555000 is an abundant number, since it is smaller than the sum of its proper divisors (40962257080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30500555000 is an equidigital number, since it uses as much as digits as its factorization.

30500555000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100137 (or 6100118 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 23.

The spelling of 30500555000 in words is "thirty billion, five hundred million, five hundred fifty-five thousand".