13322555 has 4 divisors (see below), whose sum is σ = 15987072. Its totient is φ = 10658040.

The previous prime is 13322539. The next prime is 13322563. The reversal of 13322555 is 55522331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55522331 = 43 ⋅1291217.

It is not a de Polignac number, because 13322555 - 2⁴ = 13322539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1332251 + ... + 1332260.

It is an arithmetic number, because the mean of its divisors is an integer number (3996768).

Almost surely, 2^13322555 is an apocalyptic number.

13322555 is a deficient number, since it is larger than the sum of its proper divisors (2664517).

13322555 is an equidigital number, since it uses as much as digits as its factorization.

13322555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664516.

The product of its digits is 4500, while the sum is 26.

The square root of 13322555 is about 3650.0075342388. The cubic root of 13322555 is about 237.0623074383.

Adding to 13322555 its reverse (55522331), we get a palindrome (68844886).

The spelling of 13322555 in words is "thirteen million, three hundred twenty-two thousand, five hundred fifty-five".