525000030 has 64 divisors (see below), whose sum is σ = 1310653440. Its totient is φ = 134469504.

The previous prime is 524999989. The next prime is 525000031. The reversal of 525000030 is 30000525.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 524999973 and 525000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525000031) 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 31 ways as a sum of consecutive naturals, for example, 84697 + ... + 90683.

It is an arithmetic number, because the mean of its divisors is an integer number (20478960).

Almost surely, 2^525000030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525000030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655326720).

525000030 is an abundant number, since it is smaller than the sum of its proper divisors (785653410).

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

525000030 is a wasteful number, since it uses less digits than its factorization.

525000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 525000030 is about 22912.8791294329. The cubic root of 525000030 is about 806.7143383783.

Adding to 525000030 its reverse (30000525), we get a palindrome (555000555).

The spelling of 525000030 in words is "five hundred twenty-five million, thirty", and thus it is an aban number.