13500511 has 4 divisors (see below), whose sum is σ = 13626792. Its totient is φ = 13374232.

The previous prime is 13500493. The next prime is 13500551. The reversal of 13500511 is 11500531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13500511 - 2⁵ = 13500479 is a prime.

It is a super-2 number, since 2×13500511² = 364527594522242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62980 + ... + 63193.

It is an arithmetic number, because the mean of its divisors is an integer number (3406698).

Almost surely, 2^13500511 is an apocalyptic number.

13500511 is a deficient number, since it is larger than the sum of its proper divisors (126281).

13500511 is a wasteful number, since it uses less digits than its factorization.

13500511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126280.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 13500511 is about 3674.3041518089. The cubic root of 13500511 is about 238.1131620608.

The spelling of 13500511 in words is "thirteen million, five hundred thousand, five hundred eleven".