12522250 has 32 divisors (see below), whose sum is σ = 25251408. Its totient is φ = 4622400.

The previous prime is 12522241. The next prime is 12522253. The reversal of 12522250 is 5222521.

12522250 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 8 ways, for example, as 1306449 + 11215801 = 1143^2 + 3349^2 .

It is not an unprimeable number, because it can be changed into a prime (12522253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1324 + ... + 5176.

Almost surely, 2^12522250 is an apocalyptic number.

12522250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12522250 is an abundant number, since it is smaller than the sum of its proper divisors (12729158).

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

12522250 is a wasteful number, since it uses less digits than its factorization.

12522250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 12522250 is about 3538.6791321057. The cubic root of 12522250 is about 232.2170605278.

Adding to 12522250 its reverse (5222521), we get a palindrome (17744771).

The spelling of 12522250 in words is "twelve million, five hundred twenty-two thousand, two hundred fifty".