2421252630625 has 20 divisors (see below), whose sum is σ = 3033218749924. Its totient is φ = 1932122808000.

The previous prime is 2421252630607. The next prime is 2421252630649. The reversal of 2421252630625 is 5260362521242.

It can be written as a sum of positive squares in 10 ways, for example, as 2159641863184 + 261610767441 = 1469572^2 + 511479^2 .

It is not a de Polignac number, because 2421252630625 - 2⁷ = 2421252630497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4630974 + ... + 5127223.

Almost surely, 2^{2421252630625} is an apocalyptic number.

2421252630625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421252630625 is a deficient number, since it is larger than the sum of its proper divisors (611966119299).

2421252630625 is an frugal number, since it uses more digits than its factorization.

2421252630625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9758614 (or 9758599 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 2421252630625 in words is "two trillion, four hundred twenty-one billion, two hundred fifty-two million, six hundred thirty thousand, six hundred twenty-five".