30025252520 has 64 divisors (see below), whose sum is σ = 69270163200. Its totient is φ = 11707552000.

The previous prime is 30025252501. The next prime is 30025252561. The reversal of 30025252520 is 2525252003.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30025252520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440066 + ... + 503694.

It is an arithmetic number, because the mean of its divisors is an integer number (1082346300).

Almost surely, 2^30025252520 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 30025252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34635081600).

30025252520 is an abundant number, since it is smaller than the sum of its proper divisors (39244910680).

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

30025252520 is a wasteful number, since it uses less digits than its factorization.

30025252520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63938 (or 63934 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The spelling of 30025252520 in words is "thirty billion, twenty-five million, two hundred fifty-two thousand, five hundred twenty".