2521235 has 4 divisors (see below), whose sum is σ = 3025488. Its totient is φ = 2016984.

The previous prime is 2521223. The next prime is 2521249. The reversal of 2521235 is 5321252.

2521235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2521235 - 2⁶ = 2521171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252119 + ... + 252128.

It is an arithmetic number, because the mean of its divisors is an integer number (756372).

2^2521235 is an apocalyptic number.

2521235 is a deficient number, since it is larger than the sum of its proper divisors (504253).

2521235 is an equidigital number, since it uses as much as digits as its factorization.

2521235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504252.

The product of its digits is 600, while the sum is 20.

The square root of 2521235 is about 1587.8397274284. The cubic root of 2521235 is about 136.1040689895.

Adding to 2521235 its reverse (5321252), we get a palindrome (7842487).

The spelling of 2521235 in words is "two million, five hundred twenty-one thousand, two hundred thirty-five".