2521485188245 has 4 divisors (see below), whose sum is σ = 3025782225900. Its totient is φ = 2017188150592.

The previous prime is 2521485188213. The next prime is 2521485188293. The reversal of 2521485188245 is 5428815841252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1248871065841 + 1272614122404 = 1117529^2 + 1128102^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521485188245 - 2⁵ = 2521485188213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252148518820 + ... + 252148518829.

It is an arithmetic number, because the mean of its divisors is an integer number (756445556475).

Almost surely, 2^{2521485188245} is an apocalyptic number.

It is an amenable number.

2521485188245 is a deficient number, since it is larger than the sum of its proper divisors (504297037655).

2521485188245 is an equidigital number, since it uses as much as digits as its factorization.

2521485188245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504297037654.

The product of its digits is 8192000, while the sum is 55.

The spelling of 2521485188245 in words is "two trillion, five hundred twenty-one billion, four hundred eighty-five million, one hundred eighty-eight thousand, two hundred forty-five".