13699362600225 has 81 divisors (see below), whose sum is σ = 24636825184153. Its totient is φ = 7276746210240.

The previous prime is 13699362600223. The next prime is 13699362600241. The reversal of 13699362600225 is 52200626399631.

It is a happy number.

The square root of 13699362600225 is 3701265.

It is a perfect power (a square), and thus also a powerful number.

13699362600225 is a `hidden beast` number, since 1 + 3 + 6 + 9 + 9 + 3 + 6 + 2 + 600 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4710015446049 + 8989347154176 = 2170257^2 + 2998224^2 .

It is not a de Polignac number, because 13699362600225 - 2¹ = 13699362600223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13699362600223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 24594905647 + ... + 24594906203.

Almost surely, 2^{13699362600225} is an apocalyptic number.

13699362600225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13699362600225 is the 3701265-th square number.

13699362600225 is the 1850633-rd centered octagonal number.

It is an amenable number.

13699362600225 is a deficient number, since it is larger than the sum of its proper divisors (10937462583928).

13699362600225 is an frugal number, since it uses more digits than its factorization.

13699362600225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

Adding to 13699362600225 its reverse (52200626399631), we get a palindrome (65899988999856).

The spelling of 13699362600225 in words is "thirteen trillion, six hundred ninety-nine billion, three hundred sixty-two million, six hundred thousand, two hundred twenty-five".