1648325587 has 2 divisors, whose sum is σ = 1648325588. Its totient is φ = 1648325586.

The previous prime is 1648325537. The next prime is 1648325597. The reversal of 1648325587 is 7855238461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1648325587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1648325587.

It is not a weakly prime, because it can be changed into another prime (1648325527) by changing a digit.

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 as a sum of consecutive naturals, namely, 824162793 + 824162794.

It is an arithmetic number, because the mean of its divisors is an integer number (824162794).

Almost surely, 2^1648325587 is an apocalyptic number.

1648325587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648325587 is an equidigital number, since it uses as much as digits as its factorization.

1648325587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

The square root of 1648325587 is about 40599.5761923693. The cubic root of 1648325587 is about 1181.2658987175.

The spelling of 1648325587 in words is "one billion, six hundred forty-eight million, three hundred twenty-five thousand, five hundred eighty-seven".