12533655 has 16 divisors (see below), whose sum is σ = 20746080. Its totient is φ = 6453888.

The previous prime is 12533629. The next prime is 12533657. The reversal of 12533655 is 55633521.

It is not a de Polignac number, because 12533655 - 2⁷ = 12533527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533657) 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, 13972 + ... + 14841.

It is an arithmetic number, because the mean of its divisors is an integer number (1296630).

Almost surely, 2^12533655 is an apocalyptic number.

12533655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12533655 is a deficient number, since it is larger than the sum of its proper divisors (8212425).

12533655 is a wasteful number, since it uses less digits than its factorization.

12533655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28850.

The product of its digits is 13500, while the sum is 30.

The square root of 12533655 is about 3540.2902423389. The cubic root of 12533655 is about 232.2875385951.

The spelling of 12533655 in words is "twelve million, five hundred thirty-three thousand, six hundred fifty-five".