12533653 has 4 divisors (see below), whose sum is σ = 13673088. Its totient is φ = 11394220.

The previous prime is 12533629. The next prime is 12533657. The reversal of 12533653 is 35633521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12533653 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569701 + ... + 569722.

It is an arithmetic number, because the mean of its divisors is an integer number (3418272).

Almost surely, 2^12533653 is an apocalyptic number.

It is an amenable number.

12533653 is a deficient number, since it is larger than the sum of its proper divisors (1139435).

12533653 is a wasteful number, since it uses less digits than its factorization.

12533653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139434.

The product of its digits is 8100, while the sum is 28.

The square root of 12533653 is about 3540.2899598762. The cubic root of 12533653 is about 232.2875262397.

The spelling of 12533653 in words is "twelve million, five hundred thirty-three thousand, six hundred fifty-three".