12522516 has 12 divisors (see below), whose sum is σ = 29219232. Its totient is φ = 4174168.

The previous prime is 12522487. The next prime is 12522529. The reversal of 12522516 is 61522521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521760 + ... + 521783.

It is an arithmetic number, because the mean of its divisors is an integer number (2434936).

Almost surely, 2^12522516 is an apocalyptic number.

It is an amenable number.

12522516 is an abundant number, since it is smaller than the sum of its proper divisors (16696716).

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

12522516 is a wasteful number, since it uses less digits than its factorization.

12522516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043550 (or 1043548 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 12522516 is about 3538.7167165514. The cubic root of 12522516 is about 232.2187047824.

The spelling of 12522516 in words is "twelve million, five hundred twenty-two thousand, five hundred sixteen".