13253320 has 16 divisors (see below), whose sum is σ = 29820060. Its totient is φ = 5301312.

The previous prime is 13253311. The next prime is 13253323. The reversal of 13253320 is 2335231.

It can be written as a sum of positive squares in 2 ways, for example, as 11985444 + 1267876 = 3462^2 + 1126^2 .

It is not an unprimeable number, because it can be changed into a prime (13253323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165627 + ... + 165706.

Almost surely, 2^13253320 is an apocalyptic number.

13253320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13253320 is an abundant number, since it is smaller than the sum of its proper divisors (16566740).

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

13253320 is a wasteful number, since it uses less digits than its factorization.

13253320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331344 (or 331340 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 13253320 is about 3640.5109531493. The cubic root of 13253320 is about 236.6509368196.

Adding to 13253320 its reverse (2335231), we get a palindrome (15588551).

The spelling of 13253320 in words is "thirteen million, two hundred fifty-three thousand, three hundred twenty".