13555660 has 12 divisors (see below), whose sum is σ = 28466928. Its totient is φ = 5422256.

The previous prime is 13555657. The next prime is 13555669. The reversal of 13555660 is 6655531.

It is not an unprimeable number, because it can be changed into a prime (13555669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338872 + ... + 338911.

It is an arithmetic number, because the mean of its divisors is an integer number (2372244).

Almost surely, 2^13555660 is an apocalyptic number.

13555660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13555660 is an abundant number, since it is smaller than the sum of its proper divisors (14911268).

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

13555660 is a wasteful number, since it uses less digits than its factorization.

13555660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677792 (or 677790 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 13555660 is about 3681.8011896353. The cubic root of 13555660 is about 238.4369488773.

The spelling of 13555660 in words is "thirteen million, five hundred fifty-five thousand, six hundred sixty".