13520560 has 20 divisors (see below), whose sum is σ = 31435488. Its totient is φ = 5408192.

The previous prime is 13520531. The next prime is 13520579. The reversal of 13520560 is 6502531.

It is a happy number.

13520560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84424 + ... + 84583.

Almost surely, 2^13520560 is an apocalyptic number.

13520560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13520560 is an abundant number, since it is smaller than the sum of its proper divisors (17914928).

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

13520560 is a wasteful number, since it uses less digits than its factorization.

13520560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169020 (or 169014 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13520560 is about 3677.0314113426. The cubic root of 13520560 is about 238.2309741335.

The spelling of 13520560 in words is "thirteen million, five hundred twenty thousand, five hundred sixty".