12423525 has 24 divisors (see below), whose sum is σ = 20695104. Its totient is φ = 6576000.

The previous prime is 12423491. The next prime is 12423539. The reversal of 12423525 is 52532421.

It is not a de Polignac number, because 12423525 - 2¹⁵ = 12390757 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12423495 and 12423504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10777 + ... + 11873.

It is an arithmetic number, because the mean of its divisors is an integer number (862296).

Almost surely, 2^12423525 is an apocalyptic number.

12423525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12423525 is a deficient number, since it is larger than the sum of its proper divisors (8271579).

12423525 is a wasteful number, since it uses less digits than its factorization.

12423525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1256 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 12423525 is about 3524.7021150730. The cubic root of 12423525 is about 231.6051858546.

Adding to 12423525 its reverse (52532421), we get a palindrome (64955946).

The spelling of 12423525 in words is "twelve million, four hundred twenty-three thousand, five hundred twenty-five".