12522006 has 64 divisors (see below), whose sum is σ = 32156160. Its totient is φ = 3538080.

The previous prime is 12521989. The next prime is 12522011. The reversal of 12522006 is 60022521.

12522006 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12522006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59241 + ... + 59451.

It is an arithmetic number, because the mean of its divisors is an integer number (502440).

Almost surely, 2^12522006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12522006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16078080).

12522006 is an abundant number, since it is smaller than the sum of its proper divisors (19634154).

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

12522006 is a wasteful number, since it uses less digits than its factorization.

12522006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12522006 is about 3538.6446557969. The cubic root of 12522006 is about 232.2155522437.

Adding to 12522006 its reverse (60022521), we get a palindrome (72544527).

The spelling of 12522006 in words is "twelve million, five hundred twenty-two thousand, six".