13550011 has 4 divisors (see below), whose sum is σ = 13656832. Its totient is φ = 13443192.

The previous prime is 13549981. The next prime is 13550039. The reversal of 13550011 is 11005531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13550011 - 2⁹ = 13549499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53220 + ... + 53473.

It is an arithmetic number, because the mean of its divisors is an integer number (3414208).

Almost surely, 2^13550011 is an apocalyptic number.

13550011 is a deficient number, since it is larger than the sum of its proper divisors (106821).

13550011 is a wasteful number, since it uses less digits than its factorization.

13550011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106820.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 13550011 is about 3681.0339580069. The cubic root of 13550011 is about 238.4038232931.

Adding to 13550011 its reverse (11005531), we get a palindrome (24555542).

The spelling of 13550011 in words is "thirteen million, five hundred fifty thousand, eleven".