13625261 has 8 divisors (see below), whose sum is σ = 15445920. Its totient is φ = 11914992.

The previous prime is 13625257. The next prime is 13625263. The reversal of 13625261 is 16252631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13625261 - 2² = 13625257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13625261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13625263) 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 7 ways as a sum of consecutive naturals, for example, 27335 + ... + 27828.

It is an arithmetic number, because the mean of its divisors is an integer number (1930740).

Almost surely, 2^13625261 is an apocalyptic number.

It is an amenable number.

13625261 is a deficient number, since it is larger than the sum of its proper divisors (1820659).

13625261 is a wasteful number, since it uses less digits than its factorization.

13625261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55195.

The product of its digits is 2160, while the sum is 26.

The square root of 13625261 is about 3691.2411191901. The cubic root of 13625261 is about 238.8443341300.

Adding to 13625261 its reverse (16252631), we get a palindrome (29877892).

The spelling of 13625261 in words is "thirteen million, six hundred twenty-five thousand, two hundred sixty-one".