525431003 has 4 divisors (see below), whose sum is σ = 534044688. Its totient is φ = 516817320.

The previous prime is 525430993. The next prime is 525431009. The reversal of 525431003 is 300134525.

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 525431003 - 2¹² = 525426907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525431003.

It is not an unprimeable number, because it can be changed into a prime (525431009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4306751 + ... + 4306872.

It is an arithmetic number, because the mean of its divisors is an integer number (133511172).

Almost surely, 2^525431003 is an apocalyptic number.

525431003 is a deficient number, since it is larger than the sum of its proper divisors (8613685).

525431003 is an equidigital number, since it uses as much as digits as its factorization.

525431003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8613684.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 525431003 is about 22922.2818017753. The cubic root of 525431003 is about 806.9350221797.

Adding to 525431003 its reverse (300134525), we get a palindrome (825565528).

The spelling of 525431003 in words is "five hundred twenty-five million, four hundred thirty-one thousand, three".