531232523 has 4 divisors (see below), whose sum is σ = 548369088. Its totient is φ = 514095960.

The previous prime is 531232501. The next prime is 531232553. The reversal of 531232523 is 325232135.

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 531232523 - 2⁶ = 531232459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531232492 and 531232501.

It is not an unprimeable number, because it can be changed into a prime (531232553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8568236 + ... + 8568297.

It is an arithmetic number, because the mean of its divisors is an integer number (137092272).

Almost surely, 2^531232523 is an apocalyptic number.

531232523 is a deficient number, since it is larger than the sum of its proper divisors (17136565).

531232523 is a wasteful number, since it uses less digits than its factorization.

531232523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17136564.

The product of its digits is 5400, while the sum is 26.

The square root of 531232523 is about 23048.4820107529. The cubic root of 531232523 is about 809.8940688580.

Adding to 531232523 its reverse (325232135), we get a palindrome (856464658).

The spelling of 531232523 in words is "five hundred thirty-one million, two hundred thirty-two thousand, five hundred twenty-three".