2521233 has 32 divisors (see below), whose sum is σ = 4394880. Its totient is φ = 1408320.

The previous prime is 2521223. The next prime is 2521249. The reversal of 2521233 is 3321252.

It is not a de Polignac number, because 2521233 - 2²⁰ = 1472657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2521223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3535 + ... + 4187.

It is an arithmetic number, because the mean of its divisors is an integer number (137340).

2^2521233 is an apocalyptic number.

It is an amenable number.

2521233 is a deficient number, since it is larger than the sum of its proper divisors (1873647).

2521233 is a wasteful number, since it uses less digits than its factorization.

2521233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 680 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 2521233 is about 1587.8390976418. The cubic root of 2521233 is about 136.1040330007.

Adding to 2521233 its reverse (3321252), we get a palindrome (5842485).

It can be divided in two parts, 252 and 1233, that added together give a triangular number (1485 = T₅₄).

The spelling of 2521233 in words is "two million, five hundred twenty-one thousand, two hundred thirty-three".