523513523 has 8 divisors (see below), whose sum is σ = 581970816. Its totient is φ = 467654400.

The previous prime is 523513499. The next prime is 523513531. The reversal of 523513523 is 325315325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523513523 - 2²⁰ = 522464947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523513553) 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 7 ways as a sum of consecutive naturals, for example, 649118 + ... + 649923.

It is an arithmetic number, because the mean of its divisors is an integer number (72746352).

Almost surely, 2^523513523 is an apocalyptic number.

523513523 is a deficient number, since it is larger than the sum of its proper divisors (58457293).

523513523 is a wasteful number, since it uses less digits than its factorization.

523513523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299085.

The product of its digits is 13500, while the sum is 29.

The square root of 523513523 is about 22880.4178939109. The cubic root of 523513523 is about 805.9522304195.

Adding to 523513523 its reverse (325315325), we get a palindrome (848828848).

The spelling of 523513523 in words is "five hundred twenty-three million, five hundred thirteen thousand, five hundred twenty-three".