2520521587 has 2 divisors, whose sum is σ = 2520521588. Its totient is φ = 2520521586.

The previous prime is 2520521569. The next prime is 2520521603. The reversal of 2520521587 is 7851250252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2520521587 - 2⁷ = 2520521459 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520521287) 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 as a sum of consecutive naturals, namely, 1260260793 + 1260260794.

It is an arithmetic number, because the mean of its divisors is an integer number (1260260794).

Almost surely, 2^2520521587 is an apocalyptic number.

2520521587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520521587 is an equidigital number, since it uses as much as digits as its factorization.

2520521587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 2520521587 is about 50204.7964541238. The cubic root of 2520521587 is about 1360.9123036449.

The spelling of 2520521587 in words is "two billion, five hundred twenty million, five hundred twenty-one thousand, five hundred eighty-seven".