12535523 has 24 divisors (see below), whose sum is σ = 17141040. Its totient is φ = 9011520.

The previous prime is 12535513. The next prime is 12535531. The reversal of 12535523 is 32553521.

It is not a de Polignac number, because 12535523 - 2¹⁶ = 12469987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12535492 and 12535501.

It is not an unprimeable number, because it can be changed into a prime (12535513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6113 + ... + 7901.

It is an arithmetic number, because the mean of its divisors is an integer number (714210).

Almost surely, 2^12535523 is an apocalyptic number.

12535523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12535523 is a deficient number, since it is larger than the sum of its proper divisors (4605517).

12535523 is a wasteful number, since it uses less digits than its factorization.

12535523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1820 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 12535523 is about 3540.5540526872. The cubic root of 12535523 is about 232.2990779683.

It can be divided in two parts, 1253 and 5523, that added together give a palindrome (6776).

The spelling of 12535523 in words is "twelve million, five hundred thirty-five thousand, five hundred twenty-three".