13555900 has 18 divisors (see below), whose sum is σ = 29416520. Its totient is φ = 5422320.

The previous prime is 13555877. The next prime is 13555921. The reversal of 13555900 is 955531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67680 + ... + 67879.

Almost surely, 2^13555900 is an apocalyptic number.

13555900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13555900 is an abundant number, since it is smaller than the sum of its proper divisors (15860620).

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

13555900 is a wasteful number, since it uses less digits than its factorization.

13555900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135573 (or 135566 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 13555900 is about 3681.8337822341. The cubic root of 13555900 is about 238.4383560270.

The spelling of 13555900 in words is "thirteen million, five hundred fifty-five thousand, nine hundred".