2421203225 has 48 divisors (see below), whose sum is σ = 3545308800. Its totient is φ = 1605588480.

The previous prime is 2421203219. The next prime is 2421203227. The reversal of 2421203225 is 5223021242.

It is not a de Polignac number, because 2421203225 - 2⁸ = 2421202969 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421203225.

It is not an unprimeable number, because it can be changed into a prime (2421203227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1157981 + ... + 1160069.

It is an arithmetic number, because the mean of its divisors is an integer number (73860600).

Almost surely, 2^2421203225 is an apocalyptic number.

2421203225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421203225 is a deficient number, since it is larger than the sum of its proper divisors (1124105575).

2421203225 is a wasteful number, since it uses less digits than its factorization.

2421203225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2421203225 is about 49205.7234983899. The cubic root of 2421203225 is about 1342.7971616136.

Adding to 2421203225 its reverse (5223021242), we get a palindrome (7644224467).

The spelling of 2421203225 in words is "two billion, four hundred twenty-one million, two hundred three thousand, two hundred twenty-five".