2421055525 has 48 divisors (see below), whose sum is σ = 3623359360. Its totient is φ = 1571996160.

The previous prime is 2421055523. The next prime is 2421055573. The reversal of 2421055525 is 5255501242.

It is a happy number.

It is not a de Polignac number, because 2421055525 - 2¹ = 2421055523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421055523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1199317 + ... + 1201333.

Almost surely, 2^2421055525 is an apocalyptic number.

2421055525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421055525 is a deficient number, since it is larger than the sum of its proper divisors (1202303835).

2421055525 is an equidigital number, since it uses as much as digits as its factorization.

2421055525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2421055525 is about 49204.2226338350. Note that the first 3 decimals coincide. The cubic root of 2421055525 is about 1342.7698562953.

Adding to 2421055525 its reverse (5255501242), we get a palindrome (7676556767).

The spelling of 2421055525 in words is "two billion, four hundred twenty-one million, fifty-five thousand, five hundred twenty-five".