2125521241 has 16 divisors (see below), whose sum is σ = 2338842240. Its totient is φ = 1922659200.

The previous prime is 2125521227. The next prime is 2125521247. The reversal of 2125521241 is 1421255212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2125521241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125521247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258591 + ... + 266683.

It is an arithmetic number, because the mean of its divisors is an integer number (146177640).

Almost surely, 2^2125521241 is an apocalyptic number.

It is an amenable number.

2125521241 is a deficient number, since it is larger than the sum of its proper divisors (213320999).

2125521241 is a wasteful number, since it uses less digits than its factorization.

2125521241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736.

The product of its digits is 1600, while the sum is 25.

The square root of 2125521241 is about 46103.3755922492. The cubic root of 2125521241 is about 1285.7459049620.

Adding to 2125521241 its reverse (1421255212), we get a palindrome (3546776453).

The spelling of 2125521241 in words is "two billion, one hundred twenty-five million, five hundred twenty-one thousand, two hundred forty-one".