12533020 has 48 divisors (see below), whose sum is σ = 27417600. Its totient is φ = 4809024.

The previous prime is 12533009. The next prime is 12533023. The reversal of 12533020 is 2033521.

It is a junction number, because it is equal to n+sod(n) for n = 12532985 and 12533003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533023) 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, 62881 + ... + 63079.

It is an arithmetic number, because the mean of its divisors is an integer number (571200).

Almost surely, 2^12533020 is an apocalyptic number.

12533020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12533020 is an abundant number, since it is smaller than the sum of its proper divisors (14884580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12533020 is a wasteful number, since it uses less digits than its factorization.

12533020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 12533020 is about 3540.2005592904. The cubic root of 12533020 is about 232.2836156884.

Adding to 12533020 its reverse (2033521), we get a palindrome (14566541).

The spelling of 12533020 in words is "twelve million, five hundred thirty-three thousand, twenty".