30250000000 has 240 divisors, whose sum is σ = 82800284490. Its totient is φ = 11000000000.

The previous prime is 30249999841. The next prime is 30250000007. The reversal of 30250000000 is 5203.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 28458340416 + 1791659584 = 168696^2 + 42328^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (30250000007) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2749999995 + ... + 2750000005.

Almost surely, 2^30250000000 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 30250000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41400142245).

30250000000 is an abundant number, since it is smaller than the sum of its proper divisors (52550284490).

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

30250000000 is an frugal number, since it uses more digits than its factorization.

30250000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

Multiplying 30250000000 by its sum of digits (10), we get a square (302500000000 = 550000²).

30250000000 divided by its sum of digits (10) gives a square (3025000000 = 55000²).

Adding to 30250000000 its reverse (5203), we get a palindrome (30250005203).

The spelling of 30250000000 in words is "thirty billion, two hundred fifty million", and thus it is an aban number.