2533539 has 4 divisors (see below), whose sum is σ = 3378056. Its totient is φ = 1689024.

The previous prime is 2533507. The next prime is 2533549. The reversal of 2533539 is 9353352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2533539 - 2⁵ = 2533507 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2533549) 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, 422254 + ... + 422259.

It is an arithmetic number, because the mean of its divisors is an integer number (844514).

2^2533539 is an apocalyptic number.

2533539 is a deficient number, since it is larger than the sum of its proper divisors (844517).

2533539 is an equidigital number, since it uses as much as digits as its factorization.

2533539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844516.

The product of its digits is 12150, while the sum is 30.

The square root of 2533539 is about 1591.7094584126. The cubic root of 2533539 is about 136.3251124712.

The spelling of 2533539 in words is "two million, five hundred thirty-three thousand, five hundred thirty-nine".