2453503221 has 48 divisors (see below), whose sum is σ = 3874031616. Its totient is φ = 1487299968.

The previous prime is 2453503177. The next prime is 2453503243. The reversal of 2453503221 is 1223053542.

It is a happy number.

It is not a de Polignac number, because 2453503221 - 2¹¹ = 2453501173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2453503621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2421511 + ... + 2422523.

It is an arithmetic number, because the mean of its divisors is an integer number (80708992).

Almost surely, 2^2453503221 is an apocalyptic number.

It is an amenable number.

2453503221 is a deficient number, since it is larger than the sum of its proper divisors (1420528395).

2453503221 is a wasteful number, since it uses less digits than its factorization.

2453503221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2453503221 is about 49532.8499180090. The cubic root of 2453503221 is about 1348.7419869179.

Adding to 2453503221 its reverse (1223053542), we get a palindrome (3676556763).

The spelling of 2453503221 in words is "two billion, four hundred fifty-three million, five hundred three thousand, two hundred twenty-one".