12522280 has 32 divisors (see below), whose sum is σ = 28940040. Its totient is φ = 4872960.

The previous prime is 12522277. The next prime is 12522329. The reversal of 12522280 is 8222521.

12522280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12489156 + 33124 = 3534^2 + 182^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2751 + ... + 5710.

Almost surely, 2^12522280 is an apocalyptic number.

12522280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12522280 is an abundant number, since it is smaller than the sum of its proper divisors (16417760).

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

12522280 is a wasteful number, since it uses less digits than its factorization.

12522280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509 (or 8505 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 12522280 is about 3538.6833709729. The cubic root of 12522280 is about 232.2172459712.

The spelling of 12522280 in words is "twelve million, five hundred twenty-two thousand, two hundred eighty".