4257925648 has 20 divisors (see below), whose sum is σ = 8254611180. Its totient is φ = 2127703424.

The previous prime is 4257925601. The next prime is 4257925657. The reversal of 4257925648 is 8465297524.

It is a happy number.

4257925648 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 2 ways, for example, as 525693184 + 3732232464 = 22928^2 + 61092^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4257925595 and 4257925604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50515 + ... + 105202.

It is an arithmetic number, because the mean of its divisors is an integer number (412730559).

Almost surely, 2^4257925648 is an apocalyptic number.

It is an amenable number.

4257925648 is a deficient number, since it is larger than the sum of its proper divisors (3996685532).

4257925648 is a wasteful number, since it uses less digits than its factorization.

4257925648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157434 (or 157428 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The square root of 4257925648 is about 65252.7826839592. The cubic root of 4257925648 is about 1620.8121782307.

The spelling of 4257925648 in words is "four billion, two hundred fifty-seven million, nine hundred twenty-five thousand, six hundred forty-eight".