6612533 has 4 divisors (see below), whose sum is σ = 6622668. Its totient is φ = 6602400.

The previous prime is 6612499. The next prime is 6612539. The reversal of 6612533 is 3352166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3352166 = 2 ⋅1676083.

It can be written as a sum of positive squares in 2 ways, for example, as 5189284 + 1423249 = 2278^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 6612533 - 2⁶ = 6612469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6612539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4016 + ... + 5417.

It is an arithmetic number, because the mean of its divisors is an integer number (1655667).

Almost surely, 2^6612533 is an apocalyptic number.

It is an amenable number.

6612533 is a deficient number, since it is larger than the sum of its proper divisors (10135).

6612533 is an equidigital number, since it uses as much as digits as its factorization.

6612533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134.

The product of its digits is 3240, while the sum is 26.

The square root of 6612533 is about 2571.4845906596. The cubic root of 6612533 is about 187.6964033838.

Adding to 6612533 its reverse (3352166), we get a palindrome (9964699).

The spelling of 6612533 in words is "six million, six hundred twelve thousand, five hundred thirty-three".