13660325 has 12 divisors (see below), whose sum is σ = 19358880. Its totient is φ = 9366960.

The previous prime is 13660319. The next prime is 13660331. The reversal of 13660325 is 52306631.

It is an interprime number because it is at equal distance from previous prime (13660319) and next prime (13660331).

It is not a de Polignac number, because 13660325 - 2¹⁰ = 13659301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13660294 and 13660303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38855 + ... + 39204.

It is an arithmetic number, because the mean of its divisors is an integer number (1613240).

Almost surely, 2^13660325 is an apocalyptic number.

It is an amenable number.

13660325 is a deficient number, since it is larger than the sum of its proper divisors (5698555).

13660325 is an equidigital number, since it uses as much as digits as its factorization.

13660325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78076 (or 78071 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 13660325 is about 3695.9876893734. The cubic root of 13660325 is about 239.0490436984.

Adding to 13660325 its reverse (52306631), we get a palindrome (65966956).

The spelling of 13660325 in words is "thirteen million, six hundred sixty thousand, three hundred twenty-five".