1252520587 has 2 divisors, whose sum is σ = 1252520588. Its totient is φ = 1252520586.

The previous prime is 1252520569. The next prime is 1252520629. The reversal of 1252520587 is 7850252521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252520587 - 2¹¹ = 1252518539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252520557) 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, 626260293 + 626260294.

It is an arithmetic number, because the mean of its divisors is an integer number (626260294).

Almost surely, 2^1252520587 is an apocalyptic number.

1252520587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252520587 is an equidigital number, since it uses as much as digits as its factorization.

1252520587 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 1252520587 is about 35390.9675906155. The cubic root of 1252520587 is about 1077.9409175559.

The spelling of 1252520587 in words is "one billion, two hundred fifty-two million, five hundred twenty thousand, five hundred eighty-seven".