1248005825 has 24 divisors (see below), whose sum is σ = 1689996000. Its totient is φ = 906681600.

The previous prime is 1248005809. The next prime is 1248005833. The reversal of 1248005825 is 5285008421.

It is a happy number.

It is not a de Polignac number, because 1248005825 - 2⁴ = 1248005809 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354926 + ... + 358424.

It is an arithmetic number, because the mean of its divisors is an integer number (70416500).

Almost surely, 2^1248005825 is an apocalyptic number.

It is an amenable number.

1248005825 is a deficient number, since it is larger than the sum of its proper divisors (441990175).

1248005825 is a wasteful number, since it uses less digits than its factorization.

1248005825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 1248005825 is about 35327.1259091367. The cubic root of 1248005825 is about 1076.6441974797.

The spelling of 1248005825 in words is "one billion, two hundred forty-eight million, five thousand, eight hundred twenty-five".