13320525 has 24 divisors (see below), whose sum is σ = 22262464. Its totient is φ = 7027200.

The previous prime is 13320521. The next prime is 13320533. The reversal of 13320525 is 52502331.

It is not a de Polignac number, because 13320525 - 2² = 13320521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320521) 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 23 ways as a sum of consecutive naturals, for example, 6360 + ... + 8190.

Almost surely, 2^13320525 is an apocalyptic number.

13320525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13320525 is a deficient number, since it is larger than the sum of its proper divisors (8941939).

13320525 is a wasteful number, since it uses less digits than its factorization.

13320525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 13320525 is about 3649.7294420272. The cubic root of 13320525 is about 237.0502661812.

Adding to 13320525 its reverse (52502331), we get a palindrome (65822856).

The spelling of 13320525 in words is "thirteen million, three hundred twenty thousand, five hundred twenty-five".