30252520000 has 210 divisors, whose sum is σ = 79719170762. Its totient is φ = 11384832000.

The previous prime is 30252519943. The next prime is 30252520009. The reversal of 30252520000 is 2525203.

It can be written as a sum of positive squares in 15 ways, for example, as 17135857216 + 13116662784 = 130904^2 + 114528^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30252520000.

It is not an unprimeable number, because it can be changed into a prime (30252520009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 11558692 + ... + 11561308.

Almost surely, 2^30252520000 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 30252520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39859585381).

30252520000 is an abundant number, since it is smaller than the sum of its proper divisors (49466650762).

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

30252520000 is an equidigital number, since it uses as much as digits as its factorization.

30252520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683 (or 2641 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The spelling of 30252520000 in words is "thirty billion, two hundred fifty-two million, five hundred twenty thousand".