12581050 has 12 divisors (see below), whose sum is σ = 23400846. Its totient is φ = 5032400.

The previous prime is 12581047. The next prime is 12581053. The reversal of 12581050 is 5018521.

It is an interprime number because it is at equal distance from previous prime (12581047) and next prime (12581053).

It can be written as a sum of positive squares in 3 ways, for example, as 6661561 + 5919489 = 2581^2 + 2433^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12581053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125761 + ... + 125860.

Almost surely, 2^12581050 is an apocalyptic number.

12581050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12581050 is a deficient number, since it is larger than the sum of its proper divisors (10819796).

12581050 is a wasteful number, since it uses less digits than its factorization.

12581050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251633 (or 251628 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 12581050 is about 3546.9775866222. The cubic root of 12581050 is about 232.5799624754.

Adding to 12581050 its reverse (5018521), we get a palindrome (17599571).

The spelling of 12581050 in words is "twelve million, five hundred eighty-one thousand, fifty".