523163203 has 4 divisors (see below), whose sum is σ = 523547280. Its totient is φ = 522779128.

The previous prime is 523163189. The next prime is 523163209. The reversal of 523163203 is 302361325.

It is a happy number.

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 523163203 - 2²⁵ = 489608771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523163209) 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, 189988 + ... + 192721.

It is an arithmetic number, because the mean of its divisors is an integer number (130886820).

Almost surely, 2^523163203 is an apocalyptic number.

523163203 is a deficient number, since it is larger than the sum of its proper divisors (384077).

523163203 is a wasteful number, since it uses less digits than its factorization.

523163203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384076.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 523163203 is about 22872.7611581986. The cubic root of 523163203 is about 805.7724170530.

The spelling of 523163203 in words is "five hundred twenty-three million, one hundred sixty-three thousand, two hundred three".