13550201 has 4 divisors (see below), whose sum is σ = 15485952. Its totient is φ = 11614452.

The previous prime is 13550183. The next prime is 13550219. The reversal of 13550201 is 10205531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10205531 = 7 ⋅1457933.

It is an interprime number because it is at equal distance from previous prime (13550183) and next prime (13550219).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13550201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13550201.

It is not an unprimeable number, because it can be changed into a prime (13550231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967865 + ... + 967878.

It is an arithmetic number, because the mean of its divisors is an integer number (3871488).

Almost surely, 2^13550201 is an apocalyptic number.

It is an amenable number.

13550201 is a deficient number, since it is larger than the sum of its proper divisors (1935751).

13550201 is an equidigital number, since it uses as much as digits as its factorization.

13550201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935750.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 13550201 is about 3681.0597658826. The cubic root of 13550201 is about 238.4049375976.

Adding to 13550201 its reverse (10205531), we get a palindrome (23755732).

The spelling of 13550201 in words is "thirteen million, five hundred fifty thousand, two hundred one".