1648342625 has 16 divisors (see below), whose sum is σ = 2165404800. Its totient is φ = 1249268400.

The previous prime is 1648342621. The next prime is 1648342651. The reversal of 1648342625 is 5262438461.

It is not a de Polignac number, because 1648342625 - 2² = 1648342621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1648342621) 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 in 15 ways as a sum of consecutive naturals, for example, 344645 + ... + 349394.

It is an arithmetic number, because the mean of its divisors is an integer number (135337800).

Almost surely, 2^1648342625 is an apocalyptic number.

It is an amenable number.

1648342625 is a deficient number, since it is larger than the sum of its proper divisors (517062175).

1648342625 is an equidigital number, since it uses as much as digits as its factorization.

1648342625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694073 (or 694063 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 1648342625 is about 40599.7860216036. The cubic root of 1648342625 is about 1181.2699687749.

The spelling of 1648342625 in words is "one billion, six hundred forty-eight million, three hundred forty-two thousand, six hundred twenty-five".