525503252 has 12 divisors (see below), whose sum is σ = 973726740. Its totient is φ = 247295616.

The previous prime is 525503249. The next prime is 525503257. The reversal of 525503252 is 252305525.

It can be written as a sum of positive squares in 2 ways, for example, as 170406916 + 355096336 = 13054^2 + 18844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525503257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3863927 + ... + 3864062.

It is an arithmetic number, because the mean of its divisors is an integer number (81143895).

Almost surely, 2^525503252 is an apocalyptic number.

It is an amenable number.

525503252 is a deficient number, since it is larger than the sum of its proper divisors (448223488).

525503252 is a wasteful number, since it uses less digits than its factorization.

525503252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728010 (or 7728008 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 525503252 is about 22923.8577032750. The cubic root of 525503252 is about 806.9720061517.

Adding to 525503252 its reverse (252305525), we get a palindrome (777808777).

The spelling of 525503252 in words is "five hundred twenty-five million, five hundred three thousand, two hundred fifty-two".