30530280500 has 96 divisors (see below), whose sum is σ = 69685394688. Its totient is φ = 11662992000.

The previous prime is 30530280499. The next prime is 30530280509. The reversal of 30530280500 is 508203503.

It is a self number, because there is not a number n which added to its sum of digits gives 30530280500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530280509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9163835 + ... + 9167165.

It is an arithmetic number, because the mean of its divisors is an integer number (725889528).

Almost surely, 2^30530280500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30530280500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34842697344).

30530280500 is an abundant number, since it is smaller than the sum of its proper divisors (39155114188).

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

30530280500 is a wasteful number, since it uses less digits than its factorization.

30530280500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4158 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 30530280500 in words is "thirty billion, five hundred thirty million, two hundred eighty thousand, five hundred".