13227550 has 36 divisors (see below), whose sum is σ = 28625400. Its totient is φ = 4534320.

The previous prime is 13227521. The next prime is 13227551. The reversal of 13227550 is 5572231.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13227551) 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 17 ways as a sum of consecutive naturals, for example, 250 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (795150).

Almost surely, 2^13227550 is an apocalyptic number.

13227550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13227550 is an abundant number, since it is smaller than the sum of its proper divisors (15397850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13227550 is a wasteful number, since it uses less digits than its factorization.

13227550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425 (or 5413 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 13227550 is about 3636.9698926442. The cubic root of 13227550 is about 236.4974544823.

Adding to 13227550 its reverse (5572231), we get a palindrome (18799781).

The spelling of 13227550 in words is "thirteen million, two hundred twenty-seven thousand, five hundred fifty".