12506535 has 16 divisors (see below), whose sum is σ = 22234080. Its totient is φ = 6670080.

The previous prime is 12506519. The next prime is 12506537. The reversal of 12506535 is 53560521.

12506535 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 653 + 5 = 666.

12506535 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12506535 - 2⁴ = 12506519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12506499 and 12506508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12506537) 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, 46186 + ... + 46455.

It is an arithmetic number, because the mean of its divisors is an integer number (1389630).

Almost surely, 2^12506535 is an apocalyptic number.

12506535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12506535 is a deficient number, since it is larger than the sum of its proper divisors (9727545).

12506535 is an equidigital number, since it uses as much as digits as its factorization.

12506535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92655 (or 92649 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 12506535 is about 3536.4579737359. The cubic root of 12506535 is about 232.1198783454.

It can be divided in two parts, 12506 and 535, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12506535 in words is "twelve million, five hundred six thousand, five hundred thirty-five".