13316555 has 16 divisors (see below), whose sum is σ = 18333120. Its totient is φ = 9096192.

The previous prime is 13316551. The next prime is 13316573. The reversal of 13316555 is 55561331.

It is not a de Polignac number, because 13316555 - 2² = 13316551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13316551) 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 15 ways as a sum of consecutive naturals, for example, 11231 + ... + 12359.

It is an arithmetic number, because the mean of its divisors is an integer number (1145820).

Almost surely, 2^13316555 is an apocalyptic number.

13316555 is a deficient number, since it is larger than the sum of its proper divisors (5016565).

13316555 is a wasteful number, since it uses less digits than its factorization.

13316555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478.

The product of its digits is 6750, while the sum is 29.

The square root of 13316555 is about 3649.1855255659. The cubic root of 13316555 is about 237.0267139797.

Adding to 13316555 its reverse (55561331), we get a palindrome (68877886).

The spelling of 13316555 in words is "thirteen million, three hundred sixteen thousand, five hundred fifty-five".