13812025 has 6 divisors (see below), whose sum is σ = 17126942. Its totient is φ = 11049600.

The previous prime is 13812023. The next prime is 13812037. The reversal of 13812025 is 52021831.

It can be written as a sum of positive squares in 3 ways, for example, as 210681 + 13601344 = 459^2 + 3688^2 .

It is not a de Polignac number, because 13812025 - 2¹ = 13812023 is a prime.

It is a super-3 number, since 3×13812025³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13811987 and 13812005.

It is not an unprimeable number, because it can be changed into a prime (13812023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276216 + ... + 276265.

Almost surely, 2^13812025 is an apocalyptic number.

It is an amenable number.

13812025 is a deficient number, since it is larger than the sum of its proper divisors (3314917).

13812025 is an equidigital number, since it uses as much as digits as its factorization.

13812025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552491 (or 552486 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 13812025 is about 3716.4532823648. The cubic root of 13812025 is about 239.9306802116.

Adding to 13812025 its reverse (52021831), we get a palindrome (65833856).

The spelling of 13812025 in words is "thirteen million, eight hundred twelve thousand, twenty-five".