648148250 has 16 divisors (see below), whose sum is σ = 1213333992. Its totient is φ = 259259200.

The previous prime is 648148229. The next prime is 648148253. The reversal of 648148250 is 52841846.

It is a happy number.

648148250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 75359761 + 572788489 = 8681^2 + 23933^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (648148253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296047 + ... + 1296546.

Almost surely, 2^648148250 is an apocalyptic number.

648148250 is a deficient number, since it is larger than the sum of its proper divisors (565185742).

648148250 is a wasteful number, since it uses less digits than its factorization.

648148250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592610 (or 2592600 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 648148250 is about 25458.7558611964. The cubic root of 648148250 is about 865.4157289731.

The spelling of 648148250 in words is "six hundred forty-eight million, one hundred forty-eight thousand, two hundred fifty".