13066505 has 8 divisors (see below), whose sum is σ = 15937224. Its totient is φ = 10281600.

The previous prime is 13066499. The next prime is 13066549. The reversal of 13066505 is 50566031.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 12313081 = 868^2 + 3509^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-13066505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21116 + ... + 21725.

It is an arithmetic number, because the mean of its divisors is an integer number (1992153).

Almost surely, 2^13066505 is an apocalyptic number.

It is an amenable number.

13066505 is a deficient number, since it is larger than the sum of its proper divisors (2870719).

13066505 is an equidigital number, since it uses as much as digits as its factorization.

13066505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42907.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 13066505 is about 3614.7620945230. The cubic root of 13066505 is about 235.5337498191.

The spelling of 13066505 in words is "thirteen million, sixty-six thousand, five hundred five".