13668250 has 16 divisors (see below), whose sum is σ = 25587432. Its totient is φ = 5467200.

The previous prime is 13668247. The next prime is 13668253. The reversal of 13668250 is 5286631.

13668250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13668247) and next prime (13668253).

It can be written as a sum of positive squares in 4 ways, for example, as 1745041 + 11923209 = 1321^2 + 3453^2 .

It is not an unprimeable number, because it can be changed into a prime (13668253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27087 + ... + 27586.

Almost surely, 2^13668250 is an apocalyptic number.

13668250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13668250 is a deficient number, since it is larger than the sum of its proper divisors (11919182).

13668250 is an equidigital number, since it uses as much as digits as its factorization.

13668250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54690 (or 54680 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 13668250 is about 3697.0596424727. The cubic root of 13668250 is about 239.0952626435.

It can be divided in two parts, 136 and 68250, that added together give a palindrome (68386).

The spelling of 13668250 in words is "thirteen million, six hundred sixty-eight thousand, two hundred fifty".