12533889 has 16 divisors (see below), whose sum is σ = 17346560. Its totient is φ = 8041680.

The previous prime is 12533869. The next prime is 12533893. The reversal of 12533889 is 98833521.

12533889 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 12533889 - 2⁹ = 12533377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12533839) 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, 28332 + ... + 28770.

It is an arithmetic number, because the mean of its divisors is an integer number (1084160).

Almost surely, 2^12533889 is an apocalyptic number.

It is an amenable number.

12533889 is a deficient number, since it is larger than the sum of its proper divisors (4812671).

12533889 is a wasteful number, since it uses less digits than its factorization.

12533889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its digits is 51840, while the sum is 39.

The square root of 12533889 is about 3540.3232903225. The cubic root of 12533889 is about 232.2889841683.

The spelling of 12533889 in words is "twelve million, five hundred thirty-three thousand, eight hundred eighty-nine".