13565480 has 16 divisors (see below), whose sum is σ = 30522420. Its totient is φ = 5426176.

The previous prime is 13565471. The next prime is 13565491. The reversal of 13565480 is 8456531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13410244 + 155236 = 3662^2 + 394^2 .

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, 169529 + ... + 169608.

Almost surely, 2^13565480 is an apocalyptic number.

13565480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13565480 is an abundant number, since it is smaller than the sum of its proper divisors (16956940).

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

13565480 is a wasteful number, since it uses less digits than its factorization.

13565480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339148 (or 339144 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 13565480 is about 3683.1345346050. The cubic root of 13565480 is about 238.4945111960.

The spelling of 13565480 in words is "thirteen million, five hundred sixty-five thousand, four hundred eighty".