2521130352521 has 8 divisors (see below), whose sum is σ = 2750339208000. Its totient is φ = 2291924028240.

The previous prime is 2521130352493. The next prime is 2521130352539. The reversal of 2521130352521 is 1252530311252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2521130352521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521130351521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885580 + ... + 2932178.

It is an arithmetic number, because the mean of its divisors is an integer number (343792401000).

Almost surely, 2^{2521130352521} is an apocalyptic number.

It is an amenable number.

2521130352521 is a deficient number, since it is larger than the sum of its proper divisors (229208855479).

2521130352521 is a wasteful number, since it uses less digits than its factorization.

2521130352521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265599.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 2521130352521 its reverse (1252530311252), we get a palindrome (3773660663773).

The spelling of 2521130352521 in words is "two trillion, five hundred twenty-one billion, one hundred thirty million, three hundred fifty-two thousand, five hundred twenty-one".