2421265625 has 28 divisors (see below), whose sum is σ = 3064648272. Its totient is φ = 1912650000.

The previous prime is 2421265601. The next prime is 2421265667. The reversal of 2421265625 is 5265621242.

It is not a de Polignac number, because 2421265625 - 2⁸ = 2421265369 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 (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1295942 + ... + 1297808.

It is an arithmetic number, because the mean of its divisors is an integer number (109451724).

Almost surely, 2^2421265625 is an apocalyptic number.

2421265625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421265625 is a deficient number, since it is larger than the sum of its proper divisors (643382647).

2421265625 is an frugal number, since it uses more digits than its factorization.

2421265625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1955 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 2421265625 is about 49206.3575668836. The cubic root of 2421265625 is about 1342.8086971760.

Adding to 2421265625 its reverse (5265621242), we get a palindrome (7686886867).

The spelling of 2421265625 in words is "two billion, four hundred twenty-one million, two hundred sixty-five thousand, six hundred twenty-five".