531523424 has 12 divisors (see below), whose sum is σ = 1046436804. Its totient is φ = 265761696.

The previous prime is 531523417. The next prime is 531523429. The reversal of 531523424 is 424325135.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531523429) 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 as a sum of consecutive naturals, namely, 8305022 + ... + 8305085.

It is an arithmetic number, because the mean of its divisors is an integer number (87203067).

Almost surely, 2^531523424 is an apocalyptic number.

It is an amenable number.

531523424 is a deficient number, since it is larger than the sum of its proper divisors (514913380).

531523424 is a wasteful number, since it uses less digits than its factorization.

531523424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16610117 (or 16610109 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 531523424 is about 23054.7917795846. The cubic root of 531523424 is about 810.0418735656.

Adding to 531523424 its reverse (424325135), we get a palindrome (955848559).

The spelling of 531523424 in words is "five hundred thirty-one million, five hundred twenty-three thousand, four hundred twenty-four".