12250538 has 4 divisors (see below), whose sum is σ = 18375810. Its totient is φ = 6125268.

The previous prime is 12250519. The next prime is 12250541. The reversal of 12250538 is 83505221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83505221 = 83 ⋅1006087.

It can be written as a sum of positive squares in only one way, i.e., 9504889 + 2745649 = 3083^2 + 1657^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3062633 + ... + 3062636.

Almost surely, 2^12250538 is an apocalyptic number.

12250538 is a deficient number, since it is larger than the sum of its proper divisors (6125272).

12250538 is an equidigital number, since it uses as much as digits as its factorization.

12250538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125271.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 12250538 is about 3500.0768562990. The cubic root of 12250538 is about 230.5251892674.

Adding to 12250538 its reverse (83505221), we get a palindrome (95755759).

The spelling of 12250538 in words is "twelve million, two hundred fifty thousand, five hundred thirty-eight".