12510522 has 24 divisors (see below), whose sum is σ = 27181440. Its totient is φ = 4158600.

The previous prime is 12510517. The next prime is 12510529. The reversal of 12510522 is 22501521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12510495 and 12510504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12510529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7897 + ... + 9347.

It is an arithmetic number, because the mean of its divisors is an integer number (1132560).

Almost surely, 2^12510522 is an apocalyptic number.

12510522 is an abundant number, since it is smaller than the sum of its proper divisors (14670918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12510522 is a wasteful number, since it uses less digits than its factorization.

12510522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12510522 is about 3537.0216284326. The cubic root of 12510522 is about 232.1445418148.

Subtracting 12510522 from its reverse (22501521), we obtain a palindrome (9990999).

The spelling of 12510522 in words is "twelve million, five hundred ten thousand, five hundred twenty-two".