13055405 has 16 divisors (see below), whose sum is σ = 18097344. Its totient is φ = 8935680.

The previous prime is 13055401. The next prime is 13055417. The reversal of 13055405 is 50455031.

It is not a de Polignac number, because 13055405 - 2² = 13055401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13055401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6047 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (1131084).

Almost surely, 2^13055405 is an apocalyptic number.

It is an amenable number.

13055405 is a deficient number, since it is larger than the sum of its proper divisors (5041939).

13055405 is a wasteful number, since it uses less digits than its factorization.

13055405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 13055405 is about 3613.2263975566. The cubic root of 13055405 is about 235.4670355935.

The spelling of 13055405 in words is "thirteen million, fifty-five thousand, four hundred five".