1264248625 has 8 divisors (see below), whose sum is σ = 1577782440. Its totient is φ = 1011398800.

The previous prime is 1264248611. The next prime is 1264248647. The reversal of 1264248625 is 5268424621.

It can be written as a sum of positive squares in 4 ways, for example, as 9884736 + 1254363889 = 3144^2 + 35417^2 .

It is not a de Polignac number, because 1264248625 - 2⁷ = 1264248497 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5056870 + ... + 5057119.

It is an arithmetic number, because the mean of its divisors is an integer number (197222805).

Almost surely, 2^1264248625 is an apocalyptic number.

It is an amenable number.

1264248625 is a deficient number, since it is larger than the sum of its proper divisors (313533815).

1264248625 is an equidigital number, since it uses as much as digits as its factorization.

1264248625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114004 (or 10113994 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 1264248625 is about 35556.2740595805. The cubic root of 1264248625 is about 1081.2949216749.

The spelling of 1264248625 in words is "one billion, two hundred sixty-four million, two hundred forty-eight thousand, six hundred twenty-five".