13385505 has 16 divisors (see below), whose sum is σ = 24476544. Its totient is φ = 6119040.

The previous prime is 13385431. The next prime is 13385531. The reversal of 13385505 is 50558331.

13385505 = 28² + 29² + ... + 342².

13385505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13385505 - 2⁸ = 13385249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63636 + ... + 63845.

It is an arithmetic number, because the mean of its divisors is an integer number (1529784).

Almost surely, 2^13385505 is an apocalyptic number.

13385505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13385505 is a deficient number, since it is larger than the sum of its proper divisors (11091039).

13385505 is a wasteful number, since it uses less digits than its factorization.

13385505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127496.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 13385505 is about 3658.6206417173. The cubic root of 13385505 is about 237.4350995334.

The spelling of 13385505 in words is "thirteen million, three hundred eighty-five thousand, five hundred five".