12538250 has 16 divisors (see below), whose sum is σ = 23472072. Its totient is φ = 5015200.

The previous prime is 12538249. The next prime is 12538277. The reversal of 12538250 is 5283521.

It can be written as a sum of positive squares in 4 ways, for example, as 3829849 + 8708401 = 1957^2 + 2951^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24827 + ... + 25326.

Almost surely, 2^12538250 is an apocalyptic number.

12538250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12538250 is a deficient number, since it is larger than the sum of its proper divisors (10933822).

12538250 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 12538250 = (25530218)₉.

12538250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50170 (or 50160 counting only the distinct ones).

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

The square root of 12538250 is about 3540.9391409625. The cubic root of 12538250 is about 232.3159216653.

The spelling of 12538250 in words is "twelve million, five hundred thirty-eight thousand, two hundred fifty".