12533885 has 32 divisors (see below), whose sum is σ = 18735360. Its totient is φ = 7884864.

The previous prime is 12533869. The next prime is 12533893. The reversal of 12533885 is 58833521.

It is not a de Polignac number, because 12533885 - 2⁴ = 12533869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76814 + ... + 76976.

It is an arithmetic number, because the mean of its divisors is an integer number (585480).

Almost surely, 2^12533885 is an apocalyptic number.

It is an amenable number.

12533885 is a deficient number, since it is larger than the sum of its proper divisors (6201475).

12533885 is an equidigital number, since it uses as much as digits as its factorization.

12533885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 188 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 12533885 is about 3540.3227254023. The cubic root of 12533885 is about 232.2889594578.

The spelling of 12533885 in words is "twelve million, five hundred thirty-three thousand, eight hundred eighty-five".