525013230 has 128 divisors (see below), whose sum is σ = 1502696448. Its totient is φ = 114895872.

The previous prime is 525013201. The next prime is 525013231. The reversal of 525013230 is 32310525.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 525013197 and 525013206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525013231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 478042 + ... + 479138.

It is an arithmetic number, because the mean of its divisors is an integer number (11739816).

Almost surely, 2^525013230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525013230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751348224).

525013230 is an abundant number, since it is smaller than the sum of its proper divisors (977683218).

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

525013230 is a wasteful number, since it uses less digits than its factorization.

525013230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 525013230 is about 22913.1671752292. The cubic root of 525013230 is about 806.7210993557.

Adding to 525013230 its reverse (32310525), we get a palindrome (557323755).

The spelling of 525013230 in words is "five hundred twenty-five million, thirteen thousand, two hundred thirty".