525203 has 4 divisors (see below), whose sum is σ = 600240. Its totient is φ = 450168.

The previous prime is 525199. The next prime is 525209. The reversal of 525203 is 302525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525203 - 2² = 525199 is a prime.

It is a d-powerful number, because it can be written as 5² + 2⁸ + 2¹⁹ + 5⁴ + 0 + 3² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37508 + ... + 37521.

It is an arithmetic number, because the mean of its divisors is an integer number (150060).

2⁵²⁵²⁰³ is an apocalyptic number.

525203 is a deficient number, since it is larger than the sum of its proper divisors (75037).

525203 is an equidigital number, since it uses as much as digits as its factorization.

525203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75036.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 525203 is about 724.7089070792. The cubic root of 525203 is about 80.6818286126.

Adding to 525203 its reverse (302525), we get a palindrome (827728).

The spelling of 525203 in words is "five hundred twenty-five thousand, two hundred three".