13378555 has 8 divisors (see below), whose sum is σ = 16074432. Its totient is φ = 10689408.

The previous prime is 13378553. The next prime is 13378579. The reversal of 13378555 is 55587331.

13378555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13378555 - 2¹ = 13378553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13378553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5454 + ... + 7516.

It is an arithmetic number, because the mean of its divisors is an integer number (2009304).

Almost surely, 2^13378555 is an apocalyptic number.

13378555 is a deficient number, since it is larger than the sum of its proper divisors (2695877).

13378555 is a wasteful number, since it uses less digits than its factorization.

13378555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365.

The product of its digits is 63000, while the sum is 37.

The square root of 13378555 is about 3657.6707068844. The cubic root of 13378555 is about 237.3939988646.

The spelling of 13378555 in words is "thirteen million, three hundred seventy-eight thousand, five hundred fifty-five".