525430530 has 64 divisors (see below), whose sum is σ = 1420934400. Its totient is φ = 138136320.

The previous prime is 525430519. The next prime is 525430537. The reversal of 525430530 is 35034525.

525430530 is a `hidden beast` number, since 52 + 54 + 30 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 525430494 and 525430503.

It is not an unprimeable number, because it can be changed into a prime (525430537) 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, 5466 + ... + 32874.

It is an arithmetic number, because the mean of its divisors is an integer number (22202100).

Almost surely, 2^525430530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525430530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710467200).

525430530 is an abundant number, since it is smaller than the sum of its proper divisors (895503870).

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

525430530 is a wasteful number, since it uses less digits than its factorization.

525430530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27496 (or 27490 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 525430530 is about 22922.2714843010. The cubic root of 525430530 is about 806.9347800417.

The spelling of 525430530 in words is "five hundred twenty-five million, four hundred thirty thousand, five hundred thirty".