2421315225 has 72 divisors (see below), whose sum is σ = 5171966592. Its totient is φ = 1058745600.

The previous prime is 2421315223. The next prime is 2421315277. The reversal of 2421315225 is 5225131242.

2421315225 is a `hidden beast` number, since 2 + 4 + 2 + 131 + 522 + 5 = 666.

It is not a de Polignac number, because 2421315225 - 2¹ = 2421315223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421315223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2805 + ... + 69645.

Almost surely, 2^2421315225 is an apocalyptic number.

2421315225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421315225 is an abundant number, since it is smaller than the sum of its proper divisors (2750651367).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421315225 is a wasteful number, since it uses less digits than its factorization.

2421315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66887 (or 66879 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2421315225 is about 49206.8615642168. The cubic root of 2421315225 is about 1342.8178663279.

Adding to 2421315225 its reverse (5225131242), we get a palindrome (7646446467).

The spelling of 2421315225 in words is "two billion, four hundred twenty-one million, three hundred fifteen thousand, two hundred twenty-five".